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BOSTON MARATHON 2025

Meghan Brennan

CT

Bib: 15578 F

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 47%
Gender (Female)
#0 / 12228
Top 32%
Division (F18-39)
#0 / 5469
Race Day Weather
50°/40°F
broken clouds

Race Timeline

Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
5K· 3.11 mi
7:57/mi
24:43
↑ 97↓ 345
10K· 6.21 mi
8:03/mi
49:43
↑ 79↓ 138
15K· 9.32 mi
8:02/mi
1:14:41
↑ 67↓ 78
20K· 12.43 mi
7:57/mi
1:39:24
↑ 106↓ 86
Half· 13.11 mi
7:49/mi
1:44:44
↑ 19↓ 37
25K· 15.53 mi
7:59/mi
2:04:06
↑ 66↓ 88
30K· 18.64 mi
8:01/mi
2:28:59
↑ 181↓ 148
20M
8:10/mi
2:40:05
↑ 64↓ 50
21M
8:25/mi
2:48:30
↑ 106↓ 24
35K· 21.75 mi
8:04/mi
2:54:32
↑ 17↓ 86
23M
8:13/mi
3:04:49
↑ 23↓ 63
24M
7:55/mi
3:12:44
↓ 82
40K· 24.85 mi
8:00/mi
3:19:34
↓ 20
25.2M
8:27/mi
3:22:29
↑ 13↓ 16
Finish· 26.22 mi
7:24/mi
3:30:01
↑ 22↓ 21
Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent

The Course

Half Splits

1st Half· via Half
1:44:447:59 /mi⚖️ balanced
2nd Half
1:45:178:02 /mi⚖️ balanced
Even split — consistent pacing between halves
Is this your race?

Your race, unpacked

See your splits, ranks & AI insights.

Checkpoint Splits

CheckpointTimeAvg PaceSegment LengthSegment TimeSegment PaceTrendDiff
5K
24:437:573.11 mi24:43
7:57
-
10K
49:438:003.10 mi25:00
8:03
+0:06
15K
1:14:418:013.11 mi24:58
8:02
-0:01
20K
1:39:248:003.11 mi24:43
7:57
-0:05
Half(13.11 mi)
1:44:447:590.68 mi5:20
7:49
-0:08
25K
2:04:067:592.42 mi19:22
7:59
+0:10
30K
2:28:598:003.11 mi24:53
8:01
+0:02
20M
2:40:058:001.36 mi11:06
8:10
+0:09
21M
2:48:308:011.00 mi8:25
8:25
+0:15
35K
2:54:328:020.75 mi6:02
8:04
-0:21
23M
3:04:498:021.25 mi10:17
8:13
+0:09
24M
3:12:448:021.00 mi7:55
7:55
-0:18
40K
3:19:348:020.85 mi6:50
8:00
+0:05
25.2M
3:22:298:020.35 mi2:55
8:27
+0:27
Finish(26.22 mi)
3:30:018:011.02 mi7:32
7:24
-1:03
Trend:
Faster pace
Steady pace
Slower pace

Checkpoints & Pacing

Pace Line

Fastest Pace

7:24 /mi

Average Pace

8:01 /mi

Slowest Pace

8:27 /mi

Loading chart...
Fastest
Middle
Slowest
Average

Segments

Time at Faster Pace

2:57:18

84% of race

Time at Steady Pace

32:43

16% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:01 /mi

Loading chart...
Faster pace (< avg)
Steady pace (≈ avg)
Slower pace (> avg)

Heatmap

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

Checkpoint and Segment Rankings

CheckpointSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi16247529252921632253225322
10K3.10 mi16524-2775448-1565448-1561681855955595
15K3.11 mi16431+935394+545394+541632253225322
20K3.11 mi15911+5205098+2965098+2961457944124412
Half(13.11 mi)0.68 mi15847+645058+405058+401443442994299
25K2.42 mi15455+3924862+1964862+1961380341034103
30K3.11 mi14653+8024472+3904472+3901146430193019
20M1.36 mi14361+2924335+1374335+1371164432663266
21M1.00 mi14031+3304184+1514184+151999426172617
35K0.75 mi13972+594172+124172+121272440074007
23M1.25 mi13806+1664117+554117+551146334663466
24M1.00 mi13637+1694053+644053+641070331443144
40K0.85 mi13478+1593983+703983+701019830383038
25.2M0.35 mi13390+883953+303953+30867123842384
Finish(26.22 mi)1.02 mi13230+1603888+653888+65848122922292

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 57%
×21story building
+97ft-345ft

Overall

16322

Females

5322

F18-39

5322

5K→10K

3.1 - 6.2 mi

Top 59%
×5story building
+79ft-138ft

Overall

16818

Females

5595

F18-39

5595

10K→15K

6.2 - 9.3 mi

Top 57%
×3story building
+67ft-78ft

Overall

16322

Females

5322

F18-39

5322

15K→20K

9.3 - 12.4 mi

Top 51%
×5story building
+106ft-86ft

Overall

14579

Females

4412

F18-39

4412

20K→Half

12.4 - 13.1 mi

Top 51%
×2story building
+19ft-37ft

Overall

14434

Females

4299

F18-39

4299

Half→25K

13.1 - 15.5 mi

Top 49%
×4story building
+66ft-88ft

Overall

13803

Females

4103

F18-39

4103

25K→30K

15.5 - 18.6 mi

Top 40%
×9story building
+181ft-148ft

Overall

11464

Females

3019

F18-39

3019

30K→20M

18.6 - 20.0 mi

Top 41%
×5story building
+64ft-50ft

Overall

11644

Females

3266

F18-39

3266

20M→21M

20.0 - 21.0 mi

Top 35%
×8story building
+106ft-24ft

Overall

9994

Females

2617

F18-39

2617

21M→35K

21.0 - 21.8 mi

Top 45%
×7story building
+17ft-86ft

Overall

12724

Females

4007

F18-39

4007

35K→23M

21.8 - 23.0 mi

Top 40%
×5story building
+23ft-63ft

Overall

11463

Females

3466

F18-39

3466

23M→24M

23.0 - 24.0 mi

Top 38%
×6story building
+12ft-82ft

Overall

10703

Females

3144

F18-39

3144

24M→40K

24.0 - 24.9 mi

Top 36%
×1story
+6ft-20ft

Overall

10198

Females

3038

F18-39

3038

40K→25.2M

24.9 - 25.2 mi

Top 31%
×1story
+13ft-16ft

Overall

8671

Females

2384

F18-39

2384

25.2M→Finish

25.2 - 26.2 mi

Top 30%
×2story building
+22ft-21ft

Overall

8481

Females

2292

F18-39

2292

Passing Analysis

Category:
▲Net Change
+0
0 passed by0 passed
SegmentMovementRank
Start → 5K-#16247
5K → 10K
477200-277
#16247 → #16524
10K → 15K
160253+93
#16524 → #16431
15K → 20K
24544+520
#16431 → #15911
20K → Half
1478+64
#15911 → #15847
Half → 25K
14406+392
#15847 → #15455
25K → 30K
7809+802
#15455 → #14653
30K → 20M
10302+292
#14653 → #14361
20M → 21M
6336+330
#14361 → #14031
21M → 35K
3695+59
#14031 → #13972
35K → 23M
33199+166
#13972 → #13806
23M → 24M
17186+169
#13806 → #13637
24M → 40K
9168+159
#13637 → #13478
40K → 25.2M
492+88
#13478 → #13390
25.2M → Finish
9169+160
#13390 → #13230
TOTALS
8203837+3017
#16247 → #13230

Passing Visualized

Category:
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Passing Circle

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Position Flow

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Race Lanes

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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing