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BOSTON MARATHON 2025

Colleen Boivin

Bib: 12990•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
7:46/mi
24:07
↑ 97↓ 3451.5%
10K· 6.21 mi
7:41/mi
48:00
↑ 79↓ 1380.4%
15K· 9.32 mi
7:43/mi
1:12:00
↑ 67↓ 78
20K· 12.43 mi
8:33/mi
1:38:34
↑ 106↓ 860.1%
Half· 13.11 mi
8:18/mi
1:44:14
↑ 19↓ 370.5%
25K· 15.53 mi
8:18/mi
2:04:20
↑ 66↓ 880.2%
30K· 18.64 mi
9:14/mi
2:33:01
↑ 181↓ 1480.2%
20M
9:24/mi
2:45:48
↑ 64↓ 500.2%
21M
10:55/mi
2:56:43
↑ 106↓ 241.6%
35K· 21.75 mi
9:55/mi
3:04:08
↑ 17↓ 861.7%
23M
9:40/mi
3:16:14
↑ 23↓ 630.6%
24M
9:40/mi
3:25:53
↓ 821.3%
40K· 24.85 mi
9:13/mi
3:33:46
↓ 200.3%
25.2M
9:13/mi
3:36:56
↑ 13↓ 160.2%
Finish· 26.22 mi
9:13/mi
3:46:20
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:44:14
Pace7:57 /mi
2nd Half
Distance13.11 mi
Time2:02:06
Pace9:19 /mi
📊Positive Split: 17.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:53:4124:077:4624:07
7:46
-
10K
6.21 mi11:17:3448:007:4323:53
7:41
-0:05
15K
9.32 mi11:41:341:12:007:4324:00
7:43
+0:02
20K
12.43 mi12:08:081:38:347:5626:34
8:33
+0:50
Half
13.11 mi12:13:481:44:147:575:40
8:18
-0:15
25K
15.53 mi12:33:542:04:208:0020:06
8:18
0:00
30K
18.64 mi13:02:352:33:018:1328:41
9:14
+0:56
20M
20.00 mi13:15:222:45:488:1712:47
9:24
+0:10
21M
21.00 mi13:26:172:56:438:2510:55
10:55
+1:31
35K
21.75 mi13:33:423:04:088:287:25
9:55
-1:00
23M
23.00 mi13:45:483:16:148:3212:06
9:40
-0:15
24M
24.00 mi13:55:273:25:538:359:39
9:40
0:00
40K
24.85 mi14:03:203:33:468:367:53
9:13
-0:27
25.2M
25.20 mi14:06:303:36:568:373:11
9:13
0:00
Finish
26.22 mi14:15:543:46:208:389:24
9:13
0:00

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

7:41 /mi

Average Pace

8:38 /mi

Slowest Pace

10:55 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:04:20

55% of race

Time at Steady Pace

1:01:55

27% of race

Time at Slower Pace

40:05

18% of race

Average Pace: 8:38 /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 mi10:53:4124:077:4624:07
7:46
#14498
10K
6.21 mi11:17:3448:007:4323:53
7:41
#14118
15K
9.32 mi11:41:341:12:007:4324:00
7:43
#13988
20K
12.43 mi12:08:081:38:347:5626:34
8:33
#15390
Half
13.11 mi12:13:481:44:147:575:40
8:18
#15546
25K
15.53 mi12:33:542:04:208:0020:06
8:18
#15579
30K
18.64 mi13:02:352:33:018:1328:41
9:14
#16271
20M
20.00 mi13:15:222:45:488:1712:47
9:24
#16444
21M
21.00 mi13:26:172:56:438:2510:55
10:55
#16800
35K
21.75 mi13:33:423:04:088:287:25
9:55
#17051
23M
23.00 mi13:45:483:16:148:3212:06
9:40
#17232
24M
24.00 mi13:55:273:25:538:359:39
9:40
#17408
40K
24.85 mi14:03:203:33:468:367:53
9:13
#17410
25.2M
25.20 mi14:06:303:36:568:373:11
9:13
#17335
Finish
26.22 mi14:15:543:46:208:389:24
9:13
#17461
Faster pace
Steady pace
Slower pace
Est.Checkpoint not recorded (estimated)
~Segment time uses estimated prior

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi144984216421613762(Top 48%)3880(Top 32%)3880(Top 71%)
10K6.21 mi3.10 mi14118+3804007+2094007+20913800(Top 49%)3843(Top 31%)3843(Top 70%)
15K9.32 mi3.11 mi13988+1303964+433964+4313762(Top 48%)3880(Top 32%)3880(Top 71%)
20K12.43 mi3.11 mi15390-14024804-8404804-84018553(Top 65%)6653(Top 54%)6653(Top 122%)
Half13.11 mi0.68 mi15546-1564894-904894-9017899(Top 63%)6278(Top 51%)6278(Top 115%)
25K15.53 mi2.42 mi15579-334931-374931-3715875(Top 56%)5246(Top 43%)5246(Top 96%)
30K18.64 mi3.11 mi16271-6925393-4625393-46218796(Top 66%)7005(Top 57%)7005(Top 128%)
20M20.00 mi1.36 mi16444-1735525-1325525-13218781(Top 66%)7148(Top 58%)7148(Top 131%)
21M21.00 mi1.00 mi16800-3565756-2315756-23121171(Top 75%)8532(Top 70%)8532(Top 156%)
35K21.75 mi0.75 mi17051-2515932-1765932-17621664(Top 76%)8851(Top 72%)8851(Top 162%)
23M23.00 mi1.25 mi17232-1816074-1426074-14219304(Top 68%)7682(Top 63%)7682(Top 140%)
24M24.00 mi1.00 mi17408-1766194-1206194-12020232(Top 71%)8216(Top 67%)8216(Top 150%)
40K24.85 mi0.85 mi17410-26221-276221-2717402(Top 61%)6820(Top 56%)6820(Top 125%)
25.2M25.20 mi0.35 mi17335+756185+366185+3612956(Top 46%)4514(Top 37%)4514(Top 83%)
Finish26.22 mi1.02 mi17461-1266290-1056290-10520019(Top 70%)8167(Top 67%)8167(Top 149%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 48%
×21story building
+97ft-345ft

Overall

13762

Females

3880

F18-39

3880

5K→10K

3.1 - 6.2 mi

Top 49%
×5story building
+79ft-138ft

Overall

13800

Females

3843

F18-39

3843

10K→15K

6.2 - 9.3 mi

Top 48%
×3story building
+67ft-78ft

Overall

13762

Females

3880

F18-39

3880

15K→20K

9.3 - 12.4 mi

Top 65%
×5story building
+106ft-86ft

Overall

18553

Females

6653

F18-39

6653

20K→Half

12.4 - 13.1 mi

Top 63%
×2story building
+19ft-37ft

Overall

17899

Females

6278

F18-39

6278

Half→25K

13.1 - 15.5 mi

Top 56%
×4story building
+66ft-88ft

Overall

15875

Females

5246

F18-39

5246

25K→30K

15.5 - 18.6 mi

Top 66%
×9story building
+181ft-148ft

Overall

18796

Females

7005

F18-39

7005

30K→20M

18.6 - 20.0 mi

Top 66%
×5story building
+64ft-50ft

Overall

18781

Females

7148

F18-39

7148

20M→21M

20.0 - 21.0 mi

Top 75%
×8story building
+106ft-24ft

Overall

21171

Females

8532

F18-39

8532

21M→35K

21.0 - 21.8 mi

Top 76%
×7story building
+17ft-86ft

Overall

21664

Females

8851

F18-39

8851

35K→23M

21.8 - 23.0 mi

Top 68%
×5story building
+23ft-63ft

Overall

19304

Females

7682

F18-39

7682

23M→24M

23.0 - 24.0 mi

Top 71%
×6story building
+12ft-82ft

Overall

20232

Females

8216

F18-39

8216

24M→40K

24.0 - 24.9 mi

Top 61%
×1story
+6ft-20ft

Overall

17402

Females

6820

F18-39

6820

40K→25.2M

24.9 - 25.2 mi

Top 46%
×1story
+13ft-16ft

Overall

12956

Females

4514

F18-39

4514

25.2M→Finish

25.2 - 26.2 mi

Top 70%
×2story building
+22ft-21ft

Overall

20019

Females

8167

F18-39

8167

Passing Analysis

Category:
Athletes Passed
1464
Passed By
4427
Net Change
-2963
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#14498
5K → 10K501121+380#14498#14118
10K → 15K262132+130#14118#13988
15K → 20K341436-1402#13988#15390
20K → Half7163-156#15390#15546
Half → 25K162195-33#15546#15579
25K → 30K79771-692#15579#16271
30K → 20M60233-173#16271#16444
20M → 21M39395-356#16444#16800
21M → 35K22273-251#16800#17051
35K → 23M69250-181#17051#17232
23M → 24M45221-176#17232#17408
24M → 40K6870-2#17408#17410
40K → 25.2M805+75#17410#17335
25.2M → Finish36162-126#17335#17461
TOTALS14644427-2963
📊

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