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BOSTON MARATHON 2025

Brooke St. Pierre

Bib: 16052•F

AZ

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 46%
Gender (Female)
#0 / 12228
Top 31%
Division (F18-39)
#0 / 5469
Top 49%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
22:47
Rank: #10726
Start → 5K
7:20/mi
22:47 split
10K· 6.21 mi
46:21
Rank: #11784 (-1058)
5K → 10K
7:35/mi
23:34 split
15K· 9.32 mi
1:09:47
Rank: #11883 (-99)
10K → 15K
7:33/mi
23:26 split
20K· 12.43 mi
1:33:22
Rank: #11754 (+129)
15K → 20K
7:35/mi
23:35 split
Half· 13.11 mi
1:38:29
Rank: #11738 (+16)
20K → Half
7:30/mi
5:07 split
25K· 15.53 mi
1:57:07
Rank: #11670 (+68)
Half → 25K
7:41/mi
18:38 split
30K· 18.64 mi
2:23:08
Rank: #12064 (-394)
25K → 30K
8:22/mi
26:01 split
20M
2:35:40
Rank: #12594 (-530)
30K → 20M
9:13/mi
12:32 split
21M
2:45:27
Rank: #12920 (-326)
20M → 21M
9:47/mi
9:47 split
35K· 21.75 mi
2:51:29
Rank: #12901 (+19)
21M → 35K
8:04/mi
6:02 split
23M
3:02:01
Rank: #12874 (+27)
35K → 23M
8:25/mi
10:32 split
24M
3:10:10
Rank: #12828 (+46)
23M → 24M
8:09/mi
8:09 split
40K· 24.85 mi
3:17:52
Rank: #12980 (-152)
24M → 40K
9:00/mi
7:42 split
25.2M
3:20:56
Rank: #12957 (+23)
40K → 25.2M
8:54/mi
3:04 split
Finish· 26.22 mi
3:29:14
Rank: #12987 (-30)
25.2M → Finish
8:09/mi
8:18 split

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:38:29
Pace7:31 /mi
2nd Half
Distance13.11 mi
Time1:50:45
Pace8:27 /mi
📊Positive Split: 12.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:57:0822:477:2022:47
7:20
-
10K
6.21 mi11:20:4246:217:2823:34
7:35
+0:15
15K
9.32 mi11:44:081:09:477:2923:26
7:33
-0:02
20K
12.43 mi12:07:431:33:227:3123:35
7:35
+0:02
Half
13.11 mi12:12:501:38:297:315:07
7:30
-0:05
25K
15.53 mi12:31:281:57:077:3218:38
7:41
+0:11
30K
18.64 mi12:57:292:23:087:4126:01
8:22
+0:41
20M
20.00 mi13:10:012:35:407:4712:32
9:13
+0:51
21M
21.00 mi13:19:482:45:277:539:47
9:47
+0:34
35K
21.75 mi13:25:502:51:297:536:02
8:04
-1:43
23M
23.00 mi13:36:223:02:017:5510:32
8:25
+0:21
24M
24.00 mi13:44:313:10:107:558:09
8:09
-0:16
40K
24.85 mi13:52:133:17:527:587:42
9:00
+0:51
25.2M
25.20 mi13:55:173:20:567:583:04
8:54
-0:06
Finish
26.22 mi14:03:353:29:147:598:18
8:09
-0:45

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

7:20 /mi

Average Pace

7:59 /mi

Slowest Pace

9:47 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:57:07

56% of race

Time at Steady Pace

59:02

28% of race

Time at Slower Pace

33:05

16% of race

Average Pace: 7:59 /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 mi10:57:0822:477:2022:47
7:20
#10726
10K
6.21 mi11:20:4246:217:2823:34
7:35
#11784
15K
9.32 mi11:44:081:09:477:2923:26
7:33
#11883
20K
12.43 mi12:07:431:33:227:3123:35
7:35
#11754
Half
13.11 mi12:12:501:38:297:315:07
7:30
#11738
25K
15.53 mi12:31:281:57:077:3218:38
7:41
#11670
30K
18.64 mi12:57:292:23:087:4126:01
8:22
#12064
20M
20.00 mi13:10:012:35:407:4712:32
9:13
#12594
21M
21.00 mi13:19:482:45:277:539:47
9:47
#12920
35K
21.75 mi13:25:502:51:297:536:02
8:04
#12901
23M
23.00 mi13:36:223:02:017:5510:32
8:25
#12874
24M
24.00 mi13:44:313:10:107:558:09
8:09
#12828
40K
24.85 mi13:52:133:17:527:587:42
9:00
#12980
25.2M
25.20 mi13:55:173:20:567:583:04
8:54
#12957
Finish
26.22 mi14:03:353:29:147:598:18
8:09
#12987
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi107262152215212150(Top 43%)2992(Top 24%)2992(Top 55%)
10K6.21 mi3.10 mi11784-10582694-5422694-54212901(Top 45%)3317(Top 27%)3317(Top 61%)
15K9.32 mi3.11 mi11883-992758-642758-6412150(Top 43%)2992(Top 24%)2992(Top 55%)
20K12.43 mi3.11 mi11754+1292745+132745+1311536(Top 41%)2761(Top 23%)2761(Top 50%)
Half13.11 mi0.68 mi11738+162734+112734+1111799(Top 42%)2838(Top 23%)2838(Top 52%)
25K15.53 mi2.42 mi11670+682741-72741-711453(Top 40%)2826(Top 23%)2826(Top 52%)
30K18.64 mi3.11 mi12064-3943028-2873028-28713981(Top 49%)4350(Top 36%)4350(Top 80%)
20M20.00 mi1.36 mi12594-5303360-3323360-33217890(Top 63%)6639(Top 54%)6639(Top 121%)
21M21.00 mi1.00 mi12920-3263567-2073567-20717402(Top 61%)6472(Top 53%)6472(Top 118%)
35K21.75 mi0.75 mi12901+193571-43571-412719(Top 45%)4002(Top 33%)4002(Top 73%)
23M23.00 mi1.25 mi12874+273595-243595-2412788(Top 45%)4154(Top 34%)4154(Top 76%)
24M24.00 mi1.00 mi12828+463603-83603-812257(Top 43%)3927(Top 32%)3927(Top 72%)
40K24.85 mi0.85 mi12980-1523722-1193722-11916340(Top 58%)6217(Top 51%)6217(Top 114%)
25.2M25.20 mi0.35 mi12957+233717+53717+511257(Top 40%)3631(Top 30%)3631(Top 66%)
Finish26.22 mi1.02 mi12987-303749-323749-3213916(Top 49%)4906(Top 40%)4906(Top 90%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 43%
×21story building
+97ft-345ft

Overall

12150

Females

2992

F18-39

2992

5K→10K

3.1 - 6.2 mi

Top 45%
×5story building
+79ft-138ft

Overall

12901

Females

3317

F18-39

3317

10K→15K

6.2 - 9.3 mi

Top 43%
×3story building
+67ft-78ft

Overall

12150

Females

2992

F18-39

2992

15K→20K

9.3 - 12.4 mi

Top 41%
×5story building
+106ft-86ft

Overall

11536

Females

2761

F18-39

2761

20K→Half

12.4 - 13.1 mi

Top 42%
×2story building
+19ft-37ft

Overall

11799

Females

2838

F18-39

2838

Half→25K

13.1 - 15.5 mi

Top 40%
×4story building
+66ft-88ft

Overall

11453

Females

2826

F18-39

2826

25K→30K

15.5 - 18.6 mi

Top 49%
×9story building
+181ft-148ft

Overall

13981

Females

4350

F18-39

4350

30K→20M

18.6 - 20.0 mi

Top 63%
×5story building
+64ft-50ft

Overall

17890

Females

6639

F18-39

6639

20M→21M

20.0 - 21.0 mi

Top 61%
×8story building
+106ft-24ft

Overall

17402

Females

6472

F18-39

6472

21M→35K

21.0 - 21.8 mi

Top 45%
×7story building
+17ft-86ft

Overall

12719

Females

4002

F18-39

4002

35K→23M

21.8 - 23.0 mi

Top 45%
×5story building
+23ft-63ft

Overall

12788

Females

4154

F18-39

4154

23M→24M

23.0 - 24.0 mi

Top 43%
×6story building
+12ft-82ft

Overall

12257

Females

3927

F18-39

3927

24M→40K

24.0 - 24.9 mi

Top 58%
×1story
+6ft-20ft

Overall

16340

Females

6217

F18-39

6217

40K→25.2M

24.9 - 25.2 mi

Top 40%
×1story
+13ft-16ft

Overall

11257

Females

3631

F18-39

3631

25.2M→Finish

25.2 - 26.2 mi

Top 49%
×2story building
+22ft-21ft

Overall

13916

Females

4906

F18-39

4906

Passing Analysis

Category:
Athletes Passed
1302
Passed By
3563
Net Change
-2261
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#10726
5K → 10K351093-1058#10726#11784
10K → 15K141240-99#11784#11883
15K → 20K255126+129#11883#11754
20K → Half3822+16#11754#11738
Half → 25K189121+68#11738#11670
25K → 30K142536-394#11670#12064
30K → 20M32562-530#12064#12594
20M → 21M40366-326#12594#12920
21M → 35K6243+19#12920#12901
35K → 23M12396+27#12901#12874
23M → 24M10256+46#12874#12828
24M → 40K39191-152#12828#12980
40K → 25.2M4522+23#12980#12957
25.2M → Finish5989-30#12957#12987
TOTALS13023563-2261
📊

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