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BOSTON MARATHON 2025

Caroline Adamson

Bib: 26951•F

MA

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
10:06/mi
31:22
↑ 97↓ 3451.5%
10K· 6.21 mi
10:00/mi
1:02:26
↑ 79↓ 1380.4%
15K· 9.32 mi
10:05/mi
1:33:45
↑ 67↓ 78
20K· 12.43 mi
10:58/mi
2:07:49
↑ 106↓ 860.1%
Half· 13.11 mi
10:42/mi
2:15:07
↑ 19↓ 370.5%
25K· 15.53 mi
12:43/mi
2:45:58
↑ 66↓ 880.2%
30K· 18.64 mi
12:58/mi
3:26:14
↑ 181↓ 1480.2%
20M
14:43/mi
3:46:14
↑ 64↓ 500.2%
21M
11:58/mi
3:58:12
↑ 106↓ 241.6%
35K· 21.75 mi
10:46/mi
4:06:15
↑ 17↓ 861.7%
23M
11:16/mi
4:20:22
↑ 23↓ 630.6%
24M
10:05/mi
4:30:27
↓ 821.3%
40K· 24.85 mi
11:30/mi
4:40:17
↓ 200.3%
25.2M
12:05/mi
4:44:27
↑ 13↓ 160.2%
Finish· 26.22 mi
9:01/mi
4:53:38
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:15:07
Pace10:18 /mi
2nd Half
Distance13.11 mi
Time2:38:31
Pace12:06 /mi
📊Positive Split: 17.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:47:0231:2210:0631:22
10:06
-
10K
6.21 mi12:18:061:02:2610:0331:04
10:00
-0:06
15K
9.32 mi12:49:251:33:4510:0431:19
10:05
+0:05
20K
12.43 mi13:23:292:07:4910:1734:04
10:58
+0:53
Half
13.11 mi13:30:472:15:0710:187:18
10:42
-0:16
25K
15.53 mi14:01:382:45:5810:4130:51
12:43
+2:01
30K
18.64 mi14:41:543:26:1411:0440:16
12:58
+0:15
20M
20.00 mi15:01:543:46:1411:1920:00
14:43
+1:45
21M
21.00 mi15:13:523:58:1211:2111:58
11:58
-2:45
35K
21.75 mi15:21:554:06:1511:198:03
10:46
-1:12
23M
23.00 mi15:36:024:20:2211:1914:07
11:16
+0:30
24M
24.00 mi15:46:074:30:2711:1610:05
10:05
-1:11
40K
24.85 mi15:55:574:40:1711:179:50
11:30
+1:25
25.2M
25.20 mi16:00:074:44:2711:174:10
12:05
+0:35
Finish
26.22 mi16:09:184:53:3811:129:11
9:01
-3:04

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

9:01 /mi

Average Pace

11:12 /mi

Slowest Pace

14:43 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:53:01

38% of race

Time at Steady Pace

1:13:22

25% of race

Time at Slower Pace

1:47:15

37% of race

Average Pace: 11:12 /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 mi11:47:0231:2210:0631:22
10:06
#25807
10K
6.21 mi12:18:061:02:2610:0331:04
10:00
#25542
15K
9.32 mi12:49:251:33:4510:0431:19
10:05
#25437
20K
12.43 mi13:23:292:07:4910:1734:04
10:58
#25584
Half
13.11 mi13:30:472:15:0710:187:18
10:42
#25618
25K
15.53 mi14:01:382:45:5810:4130:51
12:43
#26013
30K
18.64 mi14:41:543:26:1411:0440:16
12:58
#26173
20M
20.00 mi15:01:543:46:1411:1920:00
14:43
#26393
21M
21.00 mi15:13:523:58:1211:2111:58
11:58
#26263
35K
21.75 mi15:21:554:06:1511:198:03
10:46
#26188
23M
23.00 mi15:36:024:20:2211:1914:07
11:16
#26082
24M
24.00 mi15:46:074:30:2711:1610:05
10:05
#25967
40K
24.85 mi15:55:574:40:1711:179:50
11:30
#25915
25.2M
25.20 mi16:00:074:44:2711:174:10
12:05
#25893
Finish
26.22 mi16:09:184:53:3811:129:11
9:01
#25772
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi25807106441064425155(Top 89%)10311(Top 84%)10311(Top 189%)
10K6.21 mi3.10 mi25542+26510522+12210522+12225317(Top 89%)10412(Top 85%)10412(Top 190%)
15K9.32 mi3.11 mi25437+10510462+6010462+6025155(Top 89%)10311(Top 84%)10311(Top 189%)
20K12.43 mi3.11 mi25584-14710552-9010552-9025939(Top 91%)10776(Top 88%)10776(Top 197%)
Half13.11 mi0.68 mi25618-3410570-1810570-1826081(Top 92%)10875(Top 89%)10875(Top 199%)
25K15.53 mi2.42 mi26013-39510806-23610806-23627097(Top 95%)11489(Top 94%)11489(Top 210%)
30K18.64 mi3.11 mi26173-16010919-11310919-11326630(Top 94%)11296(Top 92%)11296(Top 207%)
20M20.00 mi1.36 mi26393-22011058-13911058-13927746(Top 98%)11941(Top 98%)11941(Top 218%)
21M21.00 mi1.00 mi26263+13011001+5711001+5723525(Top 83%)9776(Top 80%)9776(Top 179%)
35K21.75 mi0.75 mi26188+7510960+4110960+4123692(Top 83%)9902(Top 81%)9902(Top 181%)
23M23.00 mi1.25 mi26082+10610909+5110909+5123821(Top 84%)10017(Top 82%)10017(Top 183%)
24M24.00 mi1.00 mi25967+11510850+5910850+5921567(Top 76%)8899(Top 73%)8899(Top 163%)
40K24.85 mi0.85 mi25915+5210833+1710833+1724120(Top 85%)10231(Top 84%)10231(Top 187%)
25.2M25.20 mi0.35 mi25893+2210830+310830+323355(Top 82%)9852(Top 81%)9852(Top 180%)
Finish26.22 mi1.02 mi25772+12110779+5110779+5119086(Top 67%)7665(Top 63%)7665(Top 140%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 89%
×21story building
+97ft-345ft

Overall

25155

Females

10311

F18-39

10311

5K→10K

3.1 - 6.2 mi

Top 89%
×5story building
+79ft-138ft

Overall

25317

Females

10412

F18-39

10412

10K→15K

6.2 - 9.3 mi

Top 89%
×3story building
+67ft-78ft

Overall

25155

Females

10311

F18-39

10311

15K→20K

9.3 - 12.4 mi

Top 91%
×5story building
+106ft-86ft

Overall

25939

Females

10776

F18-39

10776

20K→Half

12.4 - 13.1 mi

Top 92%
×2story building
+19ft-37ft

Overall

26081

Females

10875

F18-39

10875

Half→25K

13.1 - 15.5 mi

Top 95%
×4story building
+66ft-88ft

Overall

27097

Females

11489

F18-39

11489

25K→30K

15.5 - 18.6 mi

Top 94%
×9story building
+181ft-148ft

Overall

26630

Females

11296

F18-39

11296

30K→20M

18.6 - 20.0 mi

Top 98%
×5story building
+64ft-50ft

Overall

27746

Females

11941

F18-39

11941

20M→21M

20.0 - 21.0 mi

Top 83%
×8story building
+106ft-24ft

Overall

23525

Females

9776

F18-39

9776

21M→35K

21.0 - 21.8 mi

Top 83%
×7story building
+17ft-86ft

Overall

23692

Females

9902

F18-39

9902

35K→23M

21.8 - 23.0 mi

Top 84%
×5story building
+23ft-63ft

Overall

23821

Females

10017

F18-39

10017

23M→24M

23.0 - 24.0 mi

Top 76%
×6story building
+12ft-82ft

Overall

21567

Females

8899

F18-39

8899

24M→40K

24.0 - 24.9 mi

Top 85%
×1story
+6ft-20ft

Overall

24120

Females

10231

F18-39

10231

40K→25.2M

24.9 - 25.2 mi

Top 82%
×1story
+13ft-16ft

Overall

23355

Females

9852

F18-39

9852

25.2M→Finish

25.2 - 26.2 mi

Top 67%
×2story building
+22ft-21ft

Overall

19086

Females

7665

F18-39

7665

Passing Analysis

Category:
Athletes Passed
1347
Passed By
1312
Net Change
+35
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#25807
5K → 10K34075+265#25807#25542
10K → 15K18176+105#25542#25437
15K → 20K81228-147#25437#25584
20K → Half1044-34#25584#25618
Half → 25K14409-395#25618#26013
25K → 30K64224-160#26013#26173
30K → 20M11231-220#26173#26393
20M → 21M1366+130#26393#26263
21M → 35K783+75#26263#26188
35K → 23M1093+106#26188#26082
23M → 24M1172+115#26082#25967
24M → 40K608+52#25967#25915
40K → 25.2M242+22#25915#25893
25.2M → Finish1221+121#25893#25772
TOTALS13471312+35
📊

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