Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing

Erin Brewster

Bib: 19101 β€’F β€’Age: N/A

VA

Boston Marathon logo
0:00
0:00
/ mi
Masters
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Overall
#0 / 29021
Gender (Female)
#0 / 12578
Top 43%
Masters (Masters Women)
#0 / 6862
Top 28%
Age Group (F40-44)
#0 / 1737
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
22:53
3.11 mi
Rank: #11653
Start β†’ 5K
22:53 | 7:22/mi
10K
45:36
6.21 mi
Rank: #11430 (+223)
5K β†’ 10K
22:43 | 7:19/mi
15K
1:08:57
9.32 mi
Rank: #11928 (-498)
10K β†’ 15K
23:21 | 7:31/mi
20K
1:33:45
12.43 mi
Rank: #12983 (-1055)
15K β†’ 20K
24:48 | 7:59/mi
HALF
1:39:06
13.11 mi
Rank: #13128 (-145)
20K β†’ HALF
5:21 | 7:51/mi
25K
1:58:29
15.53 mi
Rank: #13477 (-349)
HALF β†’ 25K
19:23 | 8:00/mi
30K
2:25:22
18.64 mi
Rank: #14341 (-864)
25K β†’ 30K
26:53 | 8:40/mi
20M
2:37:33
20.00 mi
Rank: #14736 (-395)
30K β†’ 20M
12:11 | 8:59/mi
21M
2:46:53
21.00 mi
Rank: #14928 (-192)
20M β†’ 21M
9:20 | 9:20/mi
35K
2:53:00
21.75 mi
Rank: #14953 (-25)
21M β†’ 35K
6:07 | 8:11/mi
23M
3:04:21
23.00 mi
Rank: #15252 (-299)
35K β†’ 23M
11:21 | 9:05/mi
24M
3:13:18
24.00 mi
Rank: #15478 (-226)
23M β†’ 24M
8:57 | 8:57/mi
40K
3:20:57
24.85 mi
Rank: #15574 (-96)
24M β†’ 40K
7:39 | 8:57/mi
25.2M
3:24:15
25.20 mi
Rank: #15621 (-47)
40K β†’ 25.2M
3:18 | 9:35/mi
FINISH
3:32:55
26.22 mi
Rank: #15717 (-96)
25.2M β†’ FINISH
8:40 | 8:31/mi
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Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via HALF
Distance13.11 mi
Time1:39:06
Pace7:34 /mi
2nd Half
Distance13.11 mi
Time1:53:49
Pace8:41 /mi
πŸ“ŠPositive Split: 14.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:06:1422:537:2222:53
7:22
-
10K
6.21 mi11:28:5745:367:2122:43
7:19
-0:03
15K
9.32 mi11:52:181:08:577:2423:21
7:31
+0:12
20K
12.43 mi12:17:061:33:457:3324:48
7:59
+0:28
HALF
13.11 mi12:22:271:39:067:345:21
7:51
-0:08
25K
15.53 mi12:41:501:58:297:3819:23
8:00
+0:09
30K
18.64 mi13:08:432:25:227:4826:53
8:40
+0:40
20M
20.00 mi13:20:542:37:337:5312:11
8:59
+0:19
21M
21.00 mi13:30:142:46:537:579:20
9:20
+0:21
35K
21.75 mi13:36:212:53:007:586:07
8:11
-1:09
23M
23.00 mi13:47:423:04:218:0111:21
9:05
+0:54
24M
24.00 mi13:56:393:13:188:048:57
8:57
-0:08
40K
24.85 mi14:04:183:20:578:067:39
8:57
0:00
25.2M
25.20 mi14:07:363:24:158:073:18
9:35
+0:38
FINISH
26.22 mi14:16:163:32:558:088:40
8:31
-1:04

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

7:19 /mi

Average Pace

8:08 /mi

Slowest Pace

9:35 /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

1:58:29

56% of race

Time at Steady Pace

41:40

20% of race

Time at Slower Pace

52:46

25% of race

Average Pace: 8:07 /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 mi11:06:1422:537:2222:53
7:22
#11653
10K
6.21 mi11:28:5745:367:2122:43
7:19
#11430
15K
9.32 mi11:52:181:08:577:2423:21
7:31
#11928
20K
12.43 mi12:17:061:33:457:3324:48
7:59
#12983
HALF
13.11 mi12:22:271:39:067:345:21
7:51
#13128
25K
15.53 mi12:41:501:58:297:3819:23
8:00
#13477
30K
18.64 mi13:08:432:25:227:4826:53
8:40
#14341
20M
20.00 mi13:20:542:37:337:5312:11
8:59
#14736
21M
21.00 mi13:30:142:46:537:579:20
9:20
#14928
35K
21.75 mi13:36:212:53:007:586:07
8:11
#14953
23M
23.00 mi13:47:423:04:218:0111:21
9:05
#15252
24M
24.00 mi13:56:393:13:188:048:57
8:57
#15478
40K
24.85 mi14:04:183:20:578:067:39
8:57
#15574
25.2M
25.20 mi14:07:363:24:158:073:18
9:35
#15621
FINISH
26.22 mi14:16:163:32:558:088:40
8:31
#15717
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 mi116532727272712973(Top 45%)3568(Top 28%)3568(Top 205%)
10K6.21 mi3.10 mi11430+2232634+932634+9311291(Top 39%)2603(Top 21%)2603(Top 150%)
15K9.32 mi3.11 mi11928-4982921-2872921-28712973(Top 45%)3568(Top 28%)3568(Top 205%)
20K12.43 mi3.11 mi12983-10553569-6483569-64815995(Top 55%)5377(Top 43%)5377(Top 310%)
HALF13.11 mi0.68 mi13128-1453657-883657-8816020(Top 55%)5355(Top 43%)5355(Top 308%)
25K15.53 mi2.42 mi13477-3493866-2093866-20915367(Top 53%)5066(Top 40%)5066(Top 292%)
30K18.64 mi3.11 mi14341-8644412-5464412-54617753(Top 61%)6536(Top 52%)6536(Top 376%)
20M20.00 mi1.36 mi14736-3954667-2554667-25518802(Top 65%)7181(Top 57%)7181(Top 413%)
21M21.00 mi1.00 mi14928-1924817-1504817-15017781(Top 61%)6666(Top 53%)6666(Top 384%)
35K21.75 mi0.75 mi14953-254847-304847-3015672(Top 54%)5564(Top 44%)5564(Top 320%)
23M23.00 mi1.25 mi15252-2995040-1935040-19318839(Top 65%)7388(Top 59%)7388(Top 425%)
24M24.00 mi1.00 mi15478-2265191-1515191-15119244(Top 66%)7633(Top 61%)7633(Top 439%)
40K24.85 mi0.85 mi15574-965267-765267-7618139(Top 63%)7109(Top 57%)7109(Top 409%)
25.2M25.20 mi0.35 mi15621-475314-475314-4717665(Top 61%)6837(Top 54%)6837(Top 394%)
FINISH26.22 mi1.02 mi15717-965386-725386-7218198(Top 63%)7144(Top 57%)7144(Top 411%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 45%
Γ—21
+97ft-345ft

Overall

12973

Females

3568

F40-44

3568

5K→10K

3.1 - 6.2 mi

Top 39%
Γ—5
+79ft-138ft

Overall

11291

Females

2603

F40-44

2603

10K→15K

6.2 - 9.3 mi

Top 45%
Γ—3
+67ft-78ft

Overall

12973

Females

3568

F40-44

3568

15K→20K

9.3 - 12.4 mi

Top 55%
Γ—5
+106ft-86ft

Overall

15995

Females

5377

F40-44

5377

20K→HALF

12.4 - 13.1 mi

Top 55%
Γ—2
+19ft-37ft

Overall

16020

Females

5355

F40-44

5355

HALF→25K

13.1 - 15.5 mi

Top 53%
Γ—4
+66ft-88ft

Overall

15367

Females

5066

F40-44

5066

25K→30K

15.5 - 18.6 mi

Top 61%
Γ—9
+181ft-148ft

Overall

17753

Females

6536

F40-44

6536

30K→20M

18.6 - 20.0 mi

Top 65%
Γ—5
+64ft-50ft

Overall

18802

Females

7181

F40-44

7181

20M→21M

20.0 - 21.0 mi

Top 61%
Γ—8
+106ft-24ft

Overall

17781

Females

6666

F40-44

6666

21M→35K

21.0 - 21.8 mi

Top 54%
Γ—7
+17ft-86ft

Overall

15672

Females

5564

F40-44

5564

35K→23M

21.8 - 23.0 mi

Top 65%
Γ—5
+23ft-63ft

Overall

18839

Females

7388

F40-44

7388

23M→24M

23.0 - 24.0 mi

Top 66%
Γ—6
+12ft-82ft

Overall

19244

Females

7633

F40-44

7633

24M→40K

24.0 - 24.9 mi

Top 63%
Γ—1
+6ft-20ft

Overall

18139

Females

7109

F40-44

7109

40K→25.2M

24.9 - 25.2 mi

Top 61%
Γ—1
+13ft-16ft

Overall

17665

Females

6837

F40-44

6837

25.2M→FINISH

25.2 - 26.2 mi

Top 63%
Γ—2
+22ft-21ft

Overall

18198

Females

7144

F40-44

7144

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
864*
Passed By
2307
Net Change
-4064
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start β†’ 5K----#11653
5K β†’ 10K382*159+223#11653#11430
10K β†’ 15K61200-498#11430#11928
15K β†’ 20K27200-1055#11928#12983
20K β†’ HALF6151-145#12983#13128
HALF β†’ 25K52200-349#13128#13477
25K β†’ 30K42200-864#13477#14341
30K β†’ 20M34200-395#14341#14736
20M β†’ 21M61200-192#14736#14928
21M β†’ 35K4368-25#14928#14953
35K β†’ 23M39200-299#14953#15252
23M β†’ 24M27200-226#15252#15478
24M β†’ 40K43139-96#15478#15574
40K β†’ 25.2M2168-47#15574#15621
25.2M β†’ FINISH26122-96#15621#15717
TOTALS864*2307-4064

* 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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