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BOSTON MARATHON 2025

Claire Brown

Bib: 18905•F

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Top 49%
Masters (Masters Women)
#0 / 6759
Top 37%
Division (F60-64)
#0 / 624
Top 7%
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
7:55/mi
24:37
↑ 97↓ 3451.5%
10K· 6.21 mi
7:58/mi
49:21
↑ 79↓ 1380.4%
15K· 9.32 mi
8:05/mi
1:14:29
↑ 67↓ 78
20K· 12.43 mi
8:19/mi
1:40:18
↑ 106↓ 860.1%
Half· 13.11 mi
8:18/mi
1:45:58
↑ 19↓ 370.5%
25K· 15.53 mi
8:29/mi
2:06:32
↑ 66↓ 880.2%
30K· 18.64 mi
9:03/mi
2:34:39
↑ 181↓ 1480.2%
20M
9:14/mi
2:47:12
↑ 64↓ 500.2%
21M
10:09/mi
2:57:21
↑ 106↓ 241.6%
35K· 21.75 mi
8:37/mi
3:03:48
↑ 17↓ 861.7%
23M
9:02/mi
3:15:06
↑ 23↓ 630.6%
24M
8:47/mi
3:23:53
↓ 821.3%
40K· 24.85 mi
9:03/mi
3:31:37
↓ 200.3%
25.2M
10:09/mi
3:35:07
↑ 13↓ 160.2%
Finish· 26.22 mi
8:41/mi
3:43:58
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:45:58
Pace8:05 /mi
2nd Half
Distance13.11 mi
Time1:58:00
Pace9:00 /mi
📊Positive Split: 11.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:15:1724:377:5524:37
7:55
-
10K
6.21 mi11:40:0149:217:5724:44
7:58
+0:03
15K
9.32 mi12:05:091:14:297:5925:08
8:05
+0:07
20K
12.43 mi12:30:581:40:188:0425:49
8:19
+0:14
Half
13.11 mi12:36:381:45:588:055:40
8:18
-0:01
25K
15.53 mi12:57:122:06:328:0920:34
8:29
+0:11
30K
18.64 mi13:25:192:34:398:1828:07
9:03
+0:34
20M
20.00 mi13:37:522:47:128:2212:33
9:14
+0:11
21M
21.00 mi13:48:012:57:218:2710:09
10:09
+0:55
35K
21.75 mi13:54:283:03:488:276:27
8:37
-1:32
23M
23.00 mi14:05:463:15:068:2911:18
9:02
+0:25
24M
24.00 mi14:14:333:23:538:308:47
8:47
-0:15
40K
24.85 mi14:22:173:31:378:317:44
9:03
+0:16
25.2M
25.20 mi14:25:473:35:078:323:30
10:09
+1:06
Finish
26.22 mi14:34:383:43:588:338:51
8:41
-1:28

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

7:55 /mi

Average Pace

8:33 /mi

Slowest Pace

10:09 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:45:58

47% of race

Time at Steady Pace

44:39

20% of race

Time at Slower Pace

1:13:21

33% of race

Average Pace: 8:33 /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 mi11:15:1724:377:5524:37
7:55
#15960
10K
6.21 mi11:40:0149:217:5724:44
7:58
#16048
15K
9.32 mi12:05:091:14:297:5925:08
8:05
#16263
20K
12.43 mi12:30:581:40:188:0425:49
8:19
#16464
Half
13.11 mi12:36:381:45:588:055:40
8:18
#16557
25K
15.53 mi12:57:122:06:328:0920:34
8:29
#16606
30K
18.64 mi13:25:192:34:398:1828:07
9:03
#16819
20M
20.00 mi13:37:522:47:128:2212:33
9:14
#16884
21M
21.00 mi13:48:012:57:218:2710:09
10:09
#16980
35K
21.75 mi13:54:283:03:488:276:27
8:37
#16950
23M
23.00 mi14:05:463:15:068:2911:18
9:02
#16900
24M
24.00 mi14:14:333:23:538:308:47
8:47
#16861
40K
24.85 mi14:22:173:31:378:317:44
9:03
#16837
25.2M
25.20 mi14:25:473:35:078:323:30
10:09
#16844
Finish
26.22 mi14:34:383:43:588:338:51
8:41
#16889
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF60-64Seg. OverallSeg. FemalesSeg. F60-64
5K3.11 mi3.11 mi159605126512616681(Top 59%)5550(Top 45%)5550(Top 889%)
10K6.21 mi3.10 mi16048-885170-445170-4416176(Top 57%)5230(Top 43%)5230(Top 838%)
15K9.32 mi3.11 mi16263-2155289-1195289-11916681(Top 59%)5550(Top 45%)5550(Top 889%)
20K12.43 mi3.11 mi16464-2015411-1225411-12216999(Top 60%)5773(Top 47%)5773(Top 925%)
Half13.11 mi0.68 mi16557-935473-625473-6217986(Top 63%)6303(Top 52%)6303(Top 1010%)
25K15.53 mi2.42 mi16606-495529-565529-5617093(Top 60%)5906(Top 48%)5906(Top 946%)
30K18.64 mi3.11 mi16819-2135710-1815710-18117938(Top 63%)6545(Top 54%)6545(Top 1049%)
20M20.00 mi1.36 mi16884-655773-635773-6317959(Top 63%)6688(Top 55%)6688(Top 1072%)
21M21.00 mi1.00 mi16980-965866-935866-9318866(Top 66%)7264(Top 59%)7264(Top 1164%)
35K21.75 mi0.75 mi16950+305869-35869-316223(Top 57%)5908(Top 48%)5908(Top 947%)
23M23.00 mi1.25 mi16900+505881-125881-1216423(Top 58%)6128(Top 50%)6128(Top 982%)
24M24.00 mi1.00 mi16861+395877+45877+416249(Top 57%)6075(Top 50%)6075(Top 974%)
40K24.85 mi0.85 mi16837+245897-205897-2016590(Top 58%)6360(Top 52%)6360(Top 1019%)
25.2M25.20 mi0.35 mi16844-75917-205917-2017711(Top 62%)6963(Top 57%)6963(Top 1116%)
Finish26.22 mi1.02 mi16889-455957-405957-4017412(Top 61%)6768(Top 55%)6768(Top 1085%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 59%
×21story building
+97ft-345ft

Overall

16681

Females

5550

F60-64

5550

5K→10K

3.1 - 6.2 mi

Top 57%
×5story building
+79ft-138ft

Overall

16176

Females

5230

F60-64

5230

10K→15K

6.2 - 9.3 mi

Top 59%
×3story building
+67ft-78ft

Overall

16681

Females

5550

F60-64

5550

15K→20K

9.3 - 12.4 mi

Top 60%
×5story building
+106ft-86ft

Overall

16999

Females

5773

F60-64

5773

20K→Half

12.4 - 13.1 mi

Top 63%
×2story building
+19ft-37ft

Overall

17986

Females

6303

F60-64

6303

Half→25K

13.1 - 15.5 mi

Top 60%
×4story building
+66ft-88ft

Overall

17093

Females

5906

F60-64

5906

25K→30K

15.5 - 18.6 mi

Top 63%
×9story building
+181ft-148ft

Overall

17938

Females

6545

F60-64

6545

30K→20M

18.6 - 20.0 mi

Top 63%
×5story building
+64ft-50ft

Overall

17959

Females

6688

F60-64

6688

20M→21M

20.0 - 21.0 mi

Top 66%
×8story building
+106ft-24ft

Overall

18866

Females

7264

F60-64

7264

21M→35K

21.0 - 21.8 mi

Top 57%
×7story building
+17ft-86ft

Overall

16223

Females

5908

F60-64

5908

35K→23M

21.8 - 23.0 mi

Top 58%
×5story building
+23ft-63ft

Overall

16423

Females

6128

F60-64

6128

23M→24M

23.0 - 24.0 mi

Top 57%
×6story building
+12ft-82ft

Overall

16249

Females

6075

F60-64

6075

24M→40K

24.0 - 24.9 mi

Top 58%
×1story
+6ft-20ft

Overall

16590

Females

6360

F60-64

6360

40K→25.2M

24.9 - 25.2 mi

Top 62%
×1story
+13ft-16ft

Overall

17711

Females

6963

F60-64

6963

25.2M→Finish

25.2 - 26.2 mi

Top 61%
×2story building
+22ft-21ft

Overall

17412

Females

6768

F60-64

6768

Passing Analysis

Category:
Athletes Passed
1532
Passed By
2461
Net Change
-929
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#15960
5K → 10K283371-88#15960#16048
10K → 15K135350-215#16048#16263
15K → 20K150351-201#16263#16464
20K → Half10103-93#16464#16557
Half → 25K151200-49#16557#16606
25K → 30K153366-213#16606#16819
30K → 20M78143-65#16819#16884
20M → 21M93189-96#16884#16980
21M → 35K7545+30#16980#16950
35K → 23M13888+50#16950#16900
23M → 24M8950+39#16900#16861
24M → 40K8662+24#16861#16837
40K → 25.2M3643-7#16837#16844
25.2M → Finish55100-45#16844#16889
TOTALS15322461-929
📊

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