Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing

Crystal Kelm

Bib: 21909 β€’F β€’Age: N/A

MI

Boston Marathon logo
0:00
0:00
/ mi
Masters
Be the first to cheer!
Overall
#0 / 29021
Gender (Female)
#0 / 12578
Masters (Masters Women)
#0 / 6862
Age Group (F45-49)
#0 / 1786
Race Day Weather
51Β°/41Β°F
overcast clouds

Race Timeline and Course Information

Your journey through the course with elevation, pacing, and checkpoint details

⏱️ Race Timeline

Watch your race unfold from start to finish

Start
0:00:00
Race begins
5K
27:57
3.11 mi
Rank: #22656
Start β†’ 5K
27:57 | 9:00/mi
10K
55:26
6.21 mi
Rank: #22395 (+261)
5K β†’ 10K
27:29 | 8:51/mi
15K
1:23:08
9.32 mi
Rank: #22361 (+34)
10K β†’ 15K
27:42 | 8:55/mi
20K
1:51:43
12.43 mi
Rank: #22443 (-82)
15K β†’ 20K
28:35 | 9:13/mi
HALF
1:58:24
13.11 mi
Rank: #22642 (-199)
20K β†’ HALF
6:41 | 9:49/mi
25K
2:24:38
15.53 mi
Rank: #23498 (-856)
HALF β†’ 25K
26:14 | 10:50/mi
30K
3:02:12
18.64 mi
Rank: #24409 (-911)
25K β†’ 30K
37:34 | 12:06/mi
20M
3:19:43
20.00 mi
Rank: #24772 (-363)
30K β†’ 20M
17:31 | 12:54/mi
21M
3:33:39
21.00 mi
Rank: #25015 (-243)
20M β†’ 21M
13:56 | 13:56/mi
35K
3:44:39
21.75 mi
Rank: #25321 (-306)
21M β†’ 35K
11:00 | 14:43/mi
23M
4:01:02
23.00 mi
Rank: #25537 (-216)
35K β†’ 23M
16:23 | 13:06/mi
24M
4:14:27
24.00 mi
Rank: #25745 (-208)
23M β†’ 24M
13:25 | 13:25/mi
40K
4:27:40
24.85 mi
Rank: #26000 (-255)
24M β†’ 40K
13:13 | 15:28/mi
25.2M
4:32:23
25.20 mi
Rank: #26026 (-26)
40K β†’ 25.2M
4:43 | 13:41/mi
FINISH
4:44:25
26.22 mi
Rank: #26091 (-65)
25.2M β†’ FINISH
12:02 | 11:49/mi
Unlock Your Full

AI Performance Report

New

Understand What Really Happened During Your Race

Go deeper with personalized analysis powered by your official race data.

Your AI Performance Report includes:
  • Fatigue & pacing analysis
  • Finish time optimization
  • Qualification readiness
  • Segment-by-segment breakdown
  • Personalized race insights
  • Downloadable athlete report
Shareable via link β€” view it anywhere, share with anyone
AI Report Preview
Generating your preview…
$4.99
One-time purchase for this race
Includes a shareable link

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via HALF
Distance13.11 mi
Time1:58:24
Pace9:02 /mi
2nd Half
Distance13.11 mi
Time2:46:01
Pace12:40 /mi
πŸ“ŠPositive Split: 40.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:29:2627:579:0027:57
9:00
-
10K
6.21 mi11:56:5555:268:5627:29
8:51
-0:09
15K
9.32 mi12:24:371:23:088:5627:42
8:55
+0:04
20K
12.43 mi12:53:121:51:439:0028:35
9:13
+0:18
HALF
13.11 mi12:59:531:58:249:026:41
9:49
+0:36
25K
15.53 mi13:26:072:24:389:1926:14
10:50
+1:01
30K
18.64 mi14:03:413:02:129:4737:34
12:06
+1:16
20M
20.00 mi14:21:123:19:4310:0017:31
12:54
+0:48
21M
21.00 mi14:35:083:33:3910:1113:56
13:56
+1:02
35K
21.75 mi14:46:083:44:3910:2011:00
14:43
+0:47
23M
23.00 mi15:02:314:01:0210:2916:23
13:06
-1:37
24M
24.00 mi15:15:564:14:2710:3713:25
13:25
+0:19
40K
24.85 mi15:29:094:27:4010:4713:13
15:28
+2:03
25.2M
25.20 mi15:33:524:32:2310:494:43
13:41
-1:47
FINISH
26.22 mi15:45:544:44:2510:5212:02
11:49
-1:52

Checkpoint Splits Visualizations

Explore your race data through different visual perspectives. Scroll to discover each visualization.

πŸ“ˆPace Line

Pace Progression

Track your pace changes throughout the race. Dot colors mark your quickest to easiest segments, relative to your own pace.

Fastest Pace

8:51 /mi

Average Pace

10:51 /mi

Slowest Pace

15:28 /mi

Loading chart...
Fastest
Middle
Slowest
Average

πŸ“ŠSegments

Segment Time Comparison

Bar length shows time spent in each segment. Colors mark your faster to slower segments, relative to your own pace.

Time at Faster Pace

2:24:38

51% of race

Time at Steady Pace

1:23:30

29% of race

Time at Slower Pace

56:17

20% of race

Average Pace: 10:51 /mi

Loading chart...
Faster pace (< avg)
Steady pace (β‰ˆ avg)
Slower pace (> avg)

🎨Heatmap

Pace Heatmap

Where you sped up and eased off relative to your own pace across the race. Colors are relative to your own range, not to other runners.

Loading...
0mi6.6mi13.1mi19.7mi26.2mi
Pace:
Faster
Steady
Slower

Click or hover over segments to see details

✨Sparklines

Checkpoint Splits with Pace Trends

Enhanced split table showing pace trends through mini sparkline visualizations.

Overall Pace Trend

CheckpointDistanceTime of DayTimeAvg PaceSegmentPaceTrendRank
5K
3.11 mi11:29:2627:579:0027:57
9:00
#22656
10K
6.21 mi11:56:5555:268:5627:29
8:51
#22395
15K
9.32 mi12:24:371:23:088:5627:42
8:55
#22361
20K
12.43 mi12:53:121:51:439:0028:35
9:13
#22443
HALF
13.11 mi12:59:531:58:249:026:41
9:49
#22642
25K
15.53 mi13:26:072:24:389:1926:14
10:50
#23498
30K
18.64 mi14:03:413:02:129:4737:34
12:06
#24409
20M
20.00 mi14:21:123:19:4310:0017:31
12:54
#24772
21M
21.00 mi14:35:083:33:3910:1113:56
13:56
#25015
35K
21.75 mi14:46:083:44:3910:2011:00
14:43
#25321
23M
23.00 mi15:02:314:01:0210:2916:23
13:06
#25537
24M
24.00 mi15:15:564:14:2710:3713:25
13:25
#25745
40K
24.85 mi15:29:094:27:4010:4713:13
15:28
#26000
25.2M
25.20 mi15:33:524:32:2310:494:43
13:41
#26026
FINISH
26.22 mi15:45:544:44:2510:5212:02
11:49
#26091
Faster pace
Steady pace
Slower pace

Rankings

Your position at each checkpoint and how you ranked in each segment

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF45-49Seg. OverallSeg. FemalesSeg. F45-49
5K3.11 mi3.11 mi226569004900422309(Top 77%)8790(Top 70%)8790(Top 492%)
10K6.21 mi3.10 mi22395+2618868+1368868+13622142(Top 76%)8732(Top 69%)8732(Top 489%)
15K9.32 mi3.11 mi22361+348840+288840+2822309(Top 77%)8790(Top 70%)8790(Top 492%)
20K12.43 mi3.11 mi22443-828879-398879-3922761(Top 78%)9055(Top 72%)9055(Top 507%)
HALF13.11 mi0.68 mi22642-1998969-908969-9025194(Top 87%)10329(Top 82%)10329(Top 578%)
25K15.53 mi2.42 mi23498-8569426-4579426-45726047(Top 90%)10824(Top 86%)10824(Top 606%)
30K18.64 mi3.11 mi24409-9119910-4849910-48426892(Top 93%)11396(Top 91%)11396(Top 638%)
20M20.00 mi1.36 mi24772-36310115-20510115-20527331(Top 94%)11660(Top 93%)11660(Top 653%)
21M21.00 mi1.00 mi25015-24310267-15210267-15227275(Top 94%)11686(Top 93%)11686(Top 654%)
35K21.75 mi0.75 mi25321-30610434-16710434-16728626(Top 99%)12414(Top 99%)12414(Top 695%)
23M23.00 mi1.25 mi25537-21610577-14310577-14327438(Top 95%)11790(Top 94%)11790(Top 660%)
24M24.00 mi1.00 mi25745-20810699-12210699-12227966(Top 96%)12098(Top 96%)12098(Top 677%)
40K24.85 mi0.85 mi26000-25510845-14610845-14628630(Top 99%)12426(Top 99%)12426(Top 696%)
25.2M25.20 mi0.35 mi26026-2610864-1910864-1926905(Top 93%)11572(Top 92%)11572(Top 648%)
FINISH26.22 mi1.02 mi26091-6510910-4610910-4627236(Top 94%)11753(Top 93%)11753(Top 658%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 77%
Γ—21
+97ft-345ft

Overall

22309

Females

8790

F45-49

8790

5K→10K

3.1 - 6.2 mi

Top 76%
Γ—5
+79ft-138ft

Overall

22142

Females

8732

F45-49

8732

10K→15K

6.2 - 9.3 mi

Top 77%
Γ—3
+67ft-78ft

Overall

22309

Females

8790

F45-49

8790

15K→20K

9.3 - 12.4 mi

Top 78%
Γ—5
+106ft-86ft

Overall

22761

Females

9055

F45-49

9055

20K→HALF

12.4 - 13.1 mi

Top 87%
Γ—2
+19ft-37ft

Overall

25194

Females

10329

F45-49

10329

HALF→25K

13.1 - 15.5 mi

Top 90%
Γ—4
+66ft-88ft

Overall

26047

Females

10824

F45-49

10824

25K→30K

15.5 - 18.6 mi

Top 93%
Γ—9
+181ft-148ft

Overall

26892

Females

11396

F45-49

11396

30K→20M

18.6 - 20.0 mi

Top 94%
Γ—5
+64ft-50ft

Overall

27331

Females

11660

F45-49

11660

20M→21M

20.0 - 21.0 mi

Top 94%
Γ—8
+106ft-24ft

Overall

27275

Females

11686

F45-49

11686

21M→35K

21.0 - 21.8 mi

Top 99%
Γ—7
+17ft-86ft

Overall

28626

Females

12414

F45-49

12414

35K→23M

21.8 - 23.0 mi

Top 95%
Γ—5
+23ft-63ft

Overall

27438

Females

11790

F45-49

11790

23M→24M

23.0 - 24.0 mi

Top 96%
Γ—6
+12ft-82ft

Overall

27966

Females

12098

F45-49

12098

24M→40K

24.0 - 24.9 mi

Top 99%
Γ—1
+6ft-20ft

Overall

28630

Females

12426

F45-49

12426

40K→25.2M

24.9 - 25.2 mi

Top 93%
Γ—1
+13ft-16ft

Overall

26905

Females

11572

F45-49

11572

25.2M→FINISH

25.2 - 26.2 mi

Top 94%
Γ—2
+22ft-21ft

Overall

27236

Females

11753

F45-49

11753

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
838*
Passed By
2416
Net Change
-3435
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start β†’ 5K----#22656
5K β†’ 10K410*149+261#22656#22395
10K β†’ 15K191157+34#22395#22361
15K β†’ 20K140200-82#22361#22443
20K β†’ HALF4200-199#22443#22642
HALF β†’ 25K12200-856#22642#23498
25K β†’ 30K18200-911#23498#24409
30K β†’ 20M12200-363#24409#24772
20M β†’ 21M7200-243#24772#25015
21M β†’ 35K3200-306#25015#25321
35K β†’ 23M15200-216#25321#25537
23M β†’ 24M4200-208#25537#25745
24M β†’ 40K3200-255#25745#26000
40K β†’ 25.2M632-26#26000#26026
25.2M β†’ FINISH1378-65#26026#26091
TOTALS838*2416-3435

* Includes athletes who did not complete a segment (DNF/DNQ).

πŸ“Š

Passing Analysis Visualizations

Explore your passing analysis through 5 different visualizations. Scroll to discover each one.

Time:
Category:

πŸ“ˆPosition Graph

Loading...

🎨Heatmap Timeline

Loading...

πŸ”„Passing Circle

Loading...

🌊Position Flow

Loading...

πŸƒRace Lanes

Loading...

Qualifying & Age Grade

See how your performance stacks up against qualifying standards

OTQ

Olympic Trials Qualifying analysis available

Activity Data

Upload your GPX file to see detailed activity metrics

Upload your GPX file

Supports Garmin, Apple Watch, Polar, Suunto, COROS, Strava, and other apps

.gpx files up to 10MB

Export & Support

Download your data, get help, and share your feedback

Export Track Data

Download your race performance as a GPX or TCX file to import into Strava, Garmin Connect, or other fitness apps.

Questions or issues regarding timing data?

If you notice any discrepancies in your timing data or have questions about your results, our support team can help.

Contact Race Support
Share Feedback