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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing
BOSTON MARATHON 2026

Shelby Matthews

Bib: 16669 β€’F β€’Age: N/A

WI

Boston Marathon logo
0:00
0:00
/ mi
Masters
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Overall
#0 / 29021
Top 41%
Gender (Female)
#0 / 12578
Top 26%
Masters (Masters Women)
#0 / 6862
Top 10%
Age Group (F40-44)
#0 / 1737
Top 23%
Race Day Weather
51Β°/41Β°F
overcast clouds
Personalized for Shelby

Your Race Performance Report is ready

See how your race unfolded, where your performance changed, and what to focus on next.

Personalized by MyRace AI
Preview insight
Your pace by distance
Fastest segment Β· 7:13/mi at mile 13.1

Your report includes

  • Race Overview
  • Pacing & Splits
  • Performance Analysis
  • Segment Analysis
  • Passing Analysis
  • Improvement Opportunities
One-time purchase Β· Instant access Β· Downloadable PDF Β· Shareable report

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
23:54
3.11 mi
Rank: #14483
Start β†’ 5K
23:54 | 7:42/mi
10K
47:30
6.21 mi
Rank: #14132 (+351)
5K β†’ 10K
23:36 | 7:36/mi
15K
1:10:55
9.32 mi
Rank: #13741 (+391)
10K β†’ 15K
23:25 | 7:33/mi
20K
1:34:17
12.43 mi
Rank: #13335 (+406)
15K β†’ 20K
23:22 | 7:32/mi
HALF
1:39:12
13.11 mi
Rank: #13185 (+150)
20K β†’ HALF
4:55 | 7:13/mi
25K
1:57:46
15.53 mi
Rank: #13103 (+82)
HALF β†’ 25K
18:34 | 7:40/mi
30K
2:21:21
18.64 mi
Rank: #12566 (+537)
25K β†’ 30K
23:35 | 7:36/mi
20M
2:31:57
20.00 mi
Rank: #12456 (+110)
30K β†’ 20M
10:36 | 7:49/mi
21M
2:40:12
21.00 mi
Rank: #12382 (+74)
20M β†’ 21M
8:15 | 8:15/mi
35K
2:45:44
21.75 mi
Rank: #12296 (+86)
21M β†’ 35K
5:32 | 7:24/mi
23M
2:55:23
23.00 mi
Rank: #12151 (+145)
35K β†’ 23M
9:39 | 7:43/mi
24M
3:03:13
24.00 mi
Rank: #12149 (+2)
23M β†’ 24M
7:50 | 7:50/mi
40K
3:09:44
24.85 mi
Rank: #12017 (+132)
24M β†’ 40K
6:31 | 7:38/mi
25.2M
3:12:42
25.20 mi
Rank: #12012 (+5)
40K β†’ 25.2M
2:58 | 8:37/mi
FINISH
3:20:10
26.22 mi
Rank: #11903 (+109)
25.2M β†’ FINISH
7:28 | 7:20/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via HALF
Distance13.11 mi
Time1:39:12
Pace7:35 /mi
2nd Half
Distance13.11 mi
Time1:40:58
Pace7:43 /mi
πŸ“ŠPositive Split: 1.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:05:3723:547:4223:54
7:42
-
10K
6.21 mi11:29:1347:307:3923:36
7:36
-0:06
15K
9.32 mi11:52:381:10:557:3723:25
7:33
-0:03
20K
12.43 mi12:16:001:34:177:3623:22
7:32
-0:01
HALF
13.11 mi12:20:551:39:127:354:55
7:13
-0:19
25K
15.53 mi12:39:291:57:467:3518:34
7:40
+0:27
30K
18.64 mi13:03:042:21:217:3523:35
7:36
-0:04
20M
20.00 mi13:13:402:31:577:3610:36
7:49
+0:13
21M
21.00 mi13:21:552:40:127:388:15
8:15
+0:26
35K
21.75 mi13:27:272:45:447:385:32
7:24
-0:51
23M
23.00 mi13:37:062:55:237:389:39
7:43
+0:19
24M
24.00 mi13:44:563:03:137:397:50
7:50
+0:07
40K
24.85 mi13:51:273:09:447:396:31
7:38
-0:12
25.2M
25.20 mi13:54:253:12:427:392:58
8:37
+0:59
FINISH
26.22 mi14:01:533:20:107:397:28
7:20
-1:17

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

7:13 /mi

Average Pace

7:38 /mi

Slowest Pace

8:37 /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

3:08:57

94% of race

Time at Steady Pace

8:15

4% of race

Time at Slower Pace

2:58

1% of race

Average Pace: 7:38 /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 mi11:05:3723:547:4223:54
7:42
#14483
10K
6.21 mi11:29:1347:307:3923:36
7:36
#14132
15K
9.32 mi11:52:381:10:557:3723:25
7:33
#13741
20K
12.43 mi12:16:001:34:177:3623:22
7:32
#13335
HALF
13.11 mi12:20:551:39:127:354:55
7:13
#13185
25K
15.53 mi12:39:291:57:467:3518:34
7:40
#13103
30K
18.64 mi13:03:042:21:217:3523:35
7:36
#12566
20M
20.00 mi13:13:402:31:577:3610:36
7:49
#12456
21M
21.00 mi13:21:552:40:127:388:15
8:15
#12382
35K
21.75 mi13:27:272:45:447:385:32
7:24
#12296
23M
23.00 mi13:37:062:55:237:389:39
7:43
#12151
24M
24.00 mi13:44:563:03:137:397:50
7:50
#12149
40K
24.85 mi13:51:273:09:447:396:31
7:38
#12017
25.2M
25.20 mi13:54:253:12:427:392:58
8:37
#12012
FINISH
26.22 mi14:01:533:20:107:397:28
7:20
#11903
Faster pace
Steady pace
Slower pace

Rankings

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

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF40-44Seg. OverallSeg. FemalesSeg. F40-44
5K3.11 mi3.11 mi144834350435013146(Top 45%)3663(Top 29%)3663(Top 211%)
10K6.21 mi3.10 mi14132+3514176+1744176+17413833(Top 48%)4015(Top 32%)4015(Top 231%)
15K9.32 mi3.11 mi13741+3913962+2143962+21413146(Top 45%)3663(Top 29%)3663(Top 211%)
20K12.43 mi3.11 mi13335+4063765+1973765+19712181(Top 42%)3210(Top 26%)3210(Top 185%)
HALF13.11 mi0.68 mi13185+1503686+793686+7910509(Top 36%)2265(Top 18%)2265(Top 130%)
25K15.53 mi2.42 mi13103+823658+283658+2812690(Top 44%)3538(Top 28%)3538(Top 204%)
30K18.64 mi3.11 mi12566+5373403+2553403+25510383(Top 36%)2467(Top 20%)2467(Top 142%)
20M20.00 mi1.36 mi12456+1103369+343369+3411392(Top 39%)3096(Top 25%)3096(Top 178%)
21M21.00 mi1.00 mi12382+743348+213348+2111556(Top 40%)3281(Top 26%)3281(Top 189%)
35K21.75 mi0.75 mi12296+863309+393309+3910129(Top 35%)2568(Top 20%)2568(Top 148%)
23M23.00 mi1.25 mi12151+1453256+533256+5310402(Top 36%)2807(Top 22%)2807(Top 162%)
24M24.00 mi1.00 mi12149+23290-343290-3412577(Top 43%)4016(Top 32%)4016(Top 231%)
40K24.85 mi0.85 mi12017+1323236+543236+549800(Top 34%)2663(Top 21%)2663(Top 153%)
25.2M25.20 mi0.35 mi12012+53246-103246-1012335(Top 43%)4011(Top 32%)4011(Top 231%)
FINISH26.22 mi1.02 mi11903+1093211+353211+3510111(Top 35%)2899(Top 23%)2899(Top 167%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 45%
Γ—21
+97ft-345ft

Overall

13146

Females

3663

F40-44

3663

5K→10K

3.1 - 6.2 mi

Top 48%
Γ—5
+79ft-138ft

Overall

13833

Females

4015

F40-44

4015

10K→15K

6.2 - 9.3 mi

Top 45%
Γ—3
+67ft-78ft

Overall

13146

Females

3663

F40-44

3663

15K→20K

9.3 - 12.4 mi

Top 42%
Γ—5
+106ft-86ft

Overall

12181

Females

3210

F40-44

3210

20K→HALF

12.4 - 13.1 mi

Top 36%
Γ—2
+19ft-37ft

Overall

10509

Females

2265

F40-44

2265

HALF→25K

13.1 - 15.5 mi

Top 44%
Γ—4
+66ft-88ft

Overall

12690

Females

3538

F40-44

3538

25K→30K

15.5 - 18.6 mi

Top 36%
Γ—9
+181ft-148ft

Overall

10383

Females

2467

F40-44

2467

30K→20M

18.6 - 20.0 mi

Top 39%
Γ—5
+64ft-50ft

Overall

11392

Females

3096

F40-44

3096

20M→21M

20.0 - 21.0 mi

Top 40%
Γ—8
+106ft-24ft

Overall

11556

Females

3281

F40-44

3281

21M→35K

21.0 - 21.8 mi

Top 35%
Γ—7
+17ft-86ft

Overall

10129

Females

2568

F40-44

2568

35K→23M

21.8 - 23.0 mi

Top 36%
Γ—5
+23ft-63ft

Overall

10402

Females

2807

F40-44

2807

23M→24M

23.0 - 24.0 mi

Top 43%
Γ—6
+12ft-82ft

Overall

12577

Females

4016

F40-44

4016

24M→40K

24.0 - 24.9 mi

Top 34%
Γ—1
+6ft-20ft

Overall

9800

Females

2663

F40-44

2663

40K→25.2M

24.9 - 25.2 mi

Top 43%
Γ—1
+13ft-16ft

Overall

12335

Females

4011

F40-44

4011

25.2M→FINISH

25.2 - 26.2 mi

Top 35%
Γ—2
+22ft-21ft

Overall

10111

Females

2899

F40-44

2899

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
3165*
Passed By
585
Net Change
+2580
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start β†’ 5K----#14483
5K β†’ 10K501*150+351#14483#14132
10K β†’ 15K449*58+391#14132#13741
15K β†’ 20K430*24+406#13741#13335
20K β†’ HALF1555+150#13335#13185
HALF β†’ 25K15472+82#13185#13103
25K β†’ 30K543*6+537#13103#12566
30K β†’ 20M13929+110#12566#12456
20M β†’ 21M12046+74#12456#12382
21M β†’ 35K9711+86#12382#12296
35K β†’ 23M17530+145#12296#12151
23M β†’ 24M7977+2#12151#12149
24M β†’ 40K14816+132#12149#12017
40K β†’ 25.2M4237+5#12017#12012
25.2M β†’ FINISH13324+109#12012#11903
TOTALS3165*585+2580

* 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

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🎨Heatmap Timeline

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πŸ”„Passing Circle

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🌊Position Flow

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πŸƒRace Lanes

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Qualifying & Age Grade

See how your performance stacks up against qualifying standards

OTQ

Olympic Trials Qualifying analysis available

Activity Data

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