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BOSTON MARATHON 2025

Brooke Harrison

Bib: 27524•F

CA

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

⏱️ Race Timeline

Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent
Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
5K· 3.11 mi
8:24/mi
26:07
↑ 97↓ 3451.5%
10K· 6.21 mi
8:27/mi
52:23
↑ 79↓ 1380.4%
15K· 9.32 mi
8:31/mi
1:18:50
↑ 67↓ 78
20K· 12.43 mi
8:48/mi
1:46:11
↑ 106↓ 860.1%
Half· 13.11 mi
9:02/mi
1:52:21
↑ 19↓ 370.5%
25K· 15.53 mi
9:20/mi
2:14:58
↑ 66↓ 880.2%
30K· 18.64 mi
9:57/mi
2:45:52
↑ 181↓ 1480.2%
20M
9:56/mi
2:59:22
↑ 64↓ 500.2%
21M
10:16/mi
3:09:38
↑ 106↓ 241.6%
35K· 21.75 mi
9:35/mi
3:16:48
↑ 17↓ 861.7%
23M
9:44/mi
3:28:59
↑ 23↓ 630.6%
24M
9:21/mi
3:38:20
↓ 821.3%
40K· 24.85 mi
9:30/mi
3:46:27
↓ 200.3%
25.2M
9:57/mi
3:49:53
↑ 13↓ 160.2%
Finish· 26.22 mi
8:10/mi
3:58:12
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:52:21
Pace8:34 /mi
2nd Half
Distance13.11 mi
Time2:05:51
Pace9:36 /mi
📊Positive Split: 12.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:42:0826:078:2426:07
8:24
-
10K
6.21 mi12:08:2452:238:2626:16
8:27
+0:03
15K
9.32 mi12:34:511:18:508:2726:27
8:31
+0:04
20K
12.43 mi13:02:121:46:118:3327:21
8:48
+0:17
Half
13.11 mi13:08:221:52:218:346:10
9:02
+0:14
25K
15.53 mi13:30:592:14:588:4122:37
9:20
+0:18
30K
18.64 mi14:01:532:45:528:5430:54
9:57
+0:37
20M
20.00 mi14:15:232:59:228:5813:30
9:56
-0:01
21M
21.00 mi14:25:393:09:389:0210:16
10:16
+0:20
35K
21.75 mi14:32:493:16:489:037:10
9:35
-0:41
23M
23.00 mi14:45:003:28:599:0512:11
9:44
+0:09
24M
24.00 mi14:54:213:38:209:069:21
9:21
-0:23
40K
24.85 mi15:02:283:46:279:078:07
9:30
+0:09
25.2M
25.20 mi15:05:543:49:539:073:26
9:57
+0:27
Finish
26.22 mi15:14:133:58:129:058:19
8:10
-1:47

Checkpoints & Pacing

📈Pace 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

8:10 /mi

Average Pace

9:05 /mi

Slowest Pace

10:16 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:54:30

48% of race

Time at Steady Pace

53:25

22% of race

Time at Slower Pace

1:10:17

30% of race

Average Pace: 9:05 /mi

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

Overall Pace Trend

CheckpointDistanceTime of DayTimeAvg PaceSegmentPaceTrendRank
5K
3.11 mi11:42:0826:078:2426:07
8:24
#19356
10K
6.21 mi12:08:2452:238:2626:16
8:27
#19430
15K
9.32 mi12:34:511:18:508:2726:27
8:31
#19410
20K
12.43 mi13:02:121:46:118:3327:21
8:48
#19561
Half
13.11 mi13:08:221:52:218:346:10
9:02
#19713
25K
15.53 mi13:30:592:14:588:4122:37
9:20
#19996
30K
18.64 mi14:01:532:45:528:5430:54
9:57
#20362
20M
20.00 mi14:15:232:59:228:5813:30
9:56
#20410
21M
21.00 mi14:25:393:09:389:0210:16
10:16
#20334
35K
21.75 mi14:32:493:16:489:037:10
9:35
#20340
23M
23.00 mi14:45:003:28:599:0512:11
9:44
#20307
24M
24.00 mi14:54:213:38:209:069:21
9:21
#20271
40K
24.85 mi15:02:283:46:279:078:07
9:30
#20229
25.2M
25.20 mi15:05:543:49:539:073:26
9:57
#20174
Finish
26.22 mi15:14:133:58:129:058:19
8:10
#19979
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi193567116711619417(Top 68%)7131(Top 58%)7131(Top 130%)
10K6.21 mi3.10 mi19430-747142-267142-2619551(Top 69%)7204(Top 59%)7204(Top 132%)
15K9.32 mi3.11 mi19410+207129+137129+1319417(Top 68%)7131(Top 58%)7131(Top 130%)
20K12.43 mi3.11 mi19561-1517222-937222-9319956(Top 70%)7457(Top 61%)7457(Top 136%)
Half13.11 mi0.68 mi19713-1527314-927314-9221982(Top 77%)8587(Top 70%)8587(Top 157%)
25K15.53 mi2.42 mi19996-2837481-1677481-16721300(Top 75%)8260(Top 68%)8260(Top 151%)
30K18.64 mi3.11 mi20362-3667738-2577738-25721440(Top 75%)8474(Top 69%)8474(Top 155%)
20M20.00 mi1.36 mi20410-487785-477785-4720723(Top 73%)8204(Top 67%)8204(Top 150%)
21M21.00 mi1.00 mi20334+767766+197766+1919265(Top 68%)7475(Top 61%)7475(Top 137%)
35K21.75 mi0.75 mi20340-67781-157781-1520625(Top 73%)8307(Top 68%)8307(Top 152%)
23M23.00 mi1.25 mi20307+337790-97790-919565(Top 69%)7818(Top 64%)7818(Top 143%)
24M24.00 mi1.00 mi20271+367789+17789+119051(Top 67%)7571(Top 62%)7571(Top 138%)
40K24.85 mi0.85 mi20229+427786+37786+318706(Top 66%)7482(Top 61%)7482(Top 137%)
25.2M25.20 mi0.35 mi20174+557758+287758+2816914(Top 60%)6568(Top 54%)6568(Top 120%)
Finish26.22 mi1.02 mi19979+1957667+917667+9114066(Top 50%)4997(Top 41%)4997(Top 91%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 68%
×21story building
+97ft-345ft

Overall

19417

Females

7131

F18-39

7131

5K→10K

3.1 - 6.2 mi

Top 69%
×5story building
+79ft-138ft

Overall

19551

Females

7204

F18-39

7204

10K→15K

6.2 - 9.3 mi

Top 68%
×3story building
+67ft-78ft

Overall

19417

Females

7131

F18-39

7131

15K→20K

9.3 - 12.4 mi

Top 70%
×5story building
+106ft-86ft

Overall

19956

Females

7457

F18-39

7457

20K→Half

12.4 - 13.1 mi

Top 77%
×2story building
+19ft-37ft

Overall

21982

Females

8587

F18-39

8587

Half→25K

13.1 - 15.5 mi

Top 75%
×4story building
+66ft-88ft

Overall

21300

Females

8260

F18-39

8260

25K→30K

15.5 - 18.6 mi

Top 75%
×9story building
+181ft-148ft

Overall

21440

Females

8474

F18-39

8474

30K→20M

18.6 - 20.0 mi

Top 73%
×5story building
+64ft-50ft

Overall

20723

Females

8204

F18-39

8204

20M→21M

20.0 - 21.0 mi

Top 68%
×8story building
+106ft-24ft

Overall

19265

Females

7475

F18-39

7475

21M→35K

21.0 - 21.8 mi

Top 73%
×7story building
+17ft-86ft

Overall

20625

Females

8307

F18-39

8307

35K→23M

21.8 - 23.0 mi

Top 69%
×5story building
+23ft-63ft

Overall

19565

Females

7818

F18-39

7818

23M→24M

23.0 - 24.0 mi

Top 67%
×6story building
+12ft-82ft

Overall

19051

Females

7571

F18-39

7571

24M→40K

24.0 - 24.9 mi

Top 66%
×1story
+6ft-20ft

Overall

18706

Females

7482

F18-39

7482

40K→25.2M

24.9 - 25.2 mi

Top 60%
×1story
+13ft-16ft

Overall

16914

Females

6568

F18-39

6568

25.2M→Finish

25.2 - 26.2 mi

Top 50%
×2story building
+22ft-21ft

Overall

14066

Females

4997

F18-39

4997

Passing Analysis

Category:
Athletes Passed
1577
Passed By
2200
Net Change
-623
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#19356
5K → 10K215289-74#19356#19430
10K → 15K209189+20#19430#19410
15K → 20K148299-151#19410#19561
20K → Half7159-152#19561#19713
Half → 25K84367-283#19713#19996
25K → 30K130496-366#19996#20362
30K → 20M86134-48#20362#20410
20M → 21M12549+76#20410#20334
21M → 35K5359-6#20334#20340
35K → 23M10471+33#20340#20307
23M → 24M7034+36#20307#20271
24M → 40K8038+42#20271#20229
40K → 25.2M638+55#20229#20174
25.2M → Finish2038+195#20174#19979
TOTALS15772200-623
📊

Passing Visuals

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