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BOSTON MARATHON 2025

Carson Ambrose

Bib: 2014•M

UT

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 14%
Gender (Male)
#0 / 16105
Top 22%
Division (M18-39)
#0 / 5642
Top 47%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Watch your race unfold from start to finish

Start
0:00:00
Race begins
5K· 3.11 mi
19:41
Rank: #2666
Start → 5K
19:41 | 6:20/mi
10K· 6.21 mi
39:33
Rank: #2815 (-149)
5K → 10K
19:52 | 6:24/mi
15K· 9.32 mi
59:32
Rank: #2912 (-97)
10K → 15K
19:59 | 6:26/mi
20K· 12.43 mi
1:19:44
Rank: #2963 (-51)
15K → 20K
20:12 | 6:30/mi
Half· 13.11 mi
1:24:05
Rank: #2953 (+10)
20K → Half
4:21 | 6:23/mi
25K· 15.53 mi
1:39:48
Rank: #2894 (+59)
Half → 25K
15:43 | 6:29/mi
30K· 18.64 mi
2:00:38
Rank: #2856 (+38)
25K → 30K
20:50 | 6:42/mi
20M
2:10:55
Rank: #3138 (-282)
30K → 20M
10:17 | 7:34/mi
21M
2:18:16
Rank: #3133 (+5)
20M → 21M
7:21 | 7:21/mi
35K· 21.75 mi
2:23:42
Rank: #3240 (-107)
21M → 35K
5:26 | 7:16/mi
23M
2:33:10
Rank: #3409 (-169)
35K → 23M
9:28 | 7:34/mi
24M
2:40:47
Rank: #3600 (-191)
23M → 24M
7:37 | 7:37/mi
40K· 24.85 mi
2:47:18
Rank: #3742 (-142)
24M → 40K
6:31 | 7:37/mi
25.2M
2:50:05
Rank: #3775 (-33)
40K → 25.2M
2:47 | 8:04/mi
Finish· 26.22 mi
2:57:34
Rank: #3911 (-136)
25.2M → Finish
7:29 | 7:21/mi

Course Map & Elevation

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:24:05
Pace6:25 /mi
2nd Half
Distance13.11 mi
Time1:33:29
Pace7:08 /mi
📊Positive Split: 11.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:20:1919:416:2019:41
6:20
-
10K
6.21 mi10:40:1139:336:2219:52
6:24
+0:04
15K
9.32 mi11:00:1059:326:2319:59
6:26
+0:02
20K
12.43 mi11:20:221:19:446:2520:12
6:30
+0:04
Half
13.11 mi11:24:431:24:056:254:21
6:23
-0:07
25K
15.53 mi11:40:261:39:486:2515:43
6:29
+0:06
30K
18.64 mi12:01:162:00:386:2820:50
6:42
+0:13
20M
20.00 mi12:11:332:10:556:3310:17
7:34
+0:52
21M
21.00 mi12:18:542:18:166:357:21
7:21
-0:13
35K
21.75 mi12:24:202:23:426:365:26
7:16
-0:05
23M
23.00 mi12:33:482:33:106:409:28
7:34
+0:18
24M
24.00 mi12:41:252:40:476:427:37
7:37
+0:03
40K
24.85 mi12:47:562:47:186:446:31
7:37
0:00
25.2M
25.20 mi12:50:432:50:056:452:47
8:04
+0:27
Finish
26.22 mi12:58:122:57:346:477:29
7:21
-0:43

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

6:20 /mi

Average Pace

6:47 /mi

Slowest Pace

8:04 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Bar length shows time spent in each segment. Colors mark your faster to slower segments, relative to your own pace.

Time at Faster Pace

2:00:38

68% of race

Time at Steady Pace

20:16

11% of race

Time at Slower Pace

36:40

21% of race

Average Pace: 6:46 /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

Enhanced split table showing pace trends through mini sparkline visualizations.

Overall Pace Trend

CheckpointDistanceTime of DayTimeAvg PaceSegmentPaceTrendRank
5K
3.11 mi10:20:1919:416:2019:41
6:20
#2666
10K
6.21 mi10:40:1139:336:2219:52
6:24
#2815
15K
9.32 mi11:00:1059:326:2319:59
6:26
#2912
20K
12.43 mi11:20:221:19:446:2520:12
6:30
#2963
Half
13.11 mi11:24:431:24:056:254:21
6:23
#2953
25K
15.53 mi11:40:261:39:486:2515:43
6:29
#2894
30K
18.64 mi12:01:162:00:386:2820:50
6:42
#2856
20M
20.00 mi12:11:332:10:556:3310:17
7:34
#3138
21M
21.00 mi12:18:542:18:166:357:21
7:21
#3133
35K
21.75 mi12:24:202:23:426:365:26
7:16
#3240
23M
23.00 mi12:33:482:33:106:409:28
7:34
#3409
24M
24.00 mi12:41:252:40:476:427:37
7:37
#3600
40K
24.85 mi12:47:562:47:186:446:31
7:37
#3742
25.2M
25.20 mi12:50:432:50:056:452:47
8:04
#3775
Finish
26.22 mi12:58:122:57:346:477:29
7:21
#3911
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi2666254125413133(Top 11%)2982(Top 19%)2982(Top 53%)
10K6.21 mi3.10 mi2815-1492682-1412682-1413004(Top 11%)2860(Top 18%)2860(Top 51%)
15K9.32 mi3.11 mi2912-972776-942776-943133(Top 11%)2982(Top 19%)2982(Top 53%)
20K12.43 mi3.11 mi2963-512823-472823-473134(Top 11%)2974(Top 18%)2974(Top 53%)
Half13.11 mi0.68 mi2953+102814+92814+92924(Top 10%)2791(Top 17%)2791(Top 49%)
25K15.53 mi2.42 mi2894+592760+542760+542788(Top 10%)2652(Top 16%)2652(Top 47%)
30K18.64 mi3.11 mi2856+382720+402720+402912(Top 10%)2743(Top 17%)2743(Top 49%)
20M20.00 mi1.36 mi3138-2822975-2552975-2557427(Top 26%)6087(Top 38%)6087(Top 108%)
21M21.00 mi1.00 mi3133+52966+92966+93842(Top 14%)3492(Top 22%)3492(Top 62%)
35K21.75 mi0.75 mi3240-1073060-943060-946925(Top 24%)5635(Top 35%)5635(Top 100%)
23M23.00 mi1.25 mi3409-1693212-1523212-1526956(Top 24%)5551(Top 34%)5551(Top 98%)
24M24.00 mi1.00 mi3600-1913374-1623374-1628473(Top 30%)6349(Top 39%)6349(Top 113%)
40K24.85 mi0.85 mi3742-1423491-1173491-1177501(Top 26%)5706(Top 35%)5706(Top 101%)
25.2M25.20 mi0.35 mi3775-333514-233514-236209(Top 22%)4842(Top 30%)4842(Top 86%)
Finish26.22 mi1.02 mi3911-1363617-1033617-1038021(Top 28%)5906(Top 37%)5906(Top 105%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 11%
×21stories
+97ft-345ft

Overall

3133

Males

2982

M18-39

2982

5K→10K

3.1 - 6.2 mi

Top 11%
×5stories
+79ft-138ft

Overall

3004

Males

2860

M18-39

2860

10K→15K

6.2 - 9.3 mi

Top 11%
×3stories
+67ft-78ft

Overall

3133

Males

2982

M18-39

2982

15K→20K

9.3 - 12.4 mi

Top 11%
×5stories
+106ft-86ft

Overall

3134

Males

2974

M18-39

2974

20K→Half

12.4 - 13.1 mi

Top 10%
×2stories
+19ft-37ft

Overall

2924

Males

2791

M18-39

2791

Half→25K

13.1 - 15.5 mi

Top 10%
×4stories
+66ft-88ft

Overall

2788

Males

2652

M18-39

2652

25K→30K

15.5 - 18.6 mi

Top 10%
×9stories
+181ft-148ft

Overall

2912

Males

2743

M18-39

2743

30K→20M

18.6 - 20.0 mi

Top 26%
×5stories
+64ft-50ft

Overall

7427

Males

6087

M18-39

6087

20M→21M

20.0 - 21.0 mi

Top 14%
×8stories
+106ft-24ft

Overall

3842

Males

3492

M18-39

3492

21M→35K

21.0 - 21.8 mi

Top 24%
×7stories
+17ft-86ft

Overall

6925

Males

5635

M18-39

5635

35K→23M

21.8 - 23.0 mi

Top 24%
×5stories
+23ft-63ft

Overall

6956

Males

5551

M18-39

5551

23M→24M

23.0 - 24.0 mi

Top 30%
×6stories
+12ft-82ft

Overall

8473

Males

6349

M18-39

6349

24M→40K

24.0 - 24.9 mi

Top 26%
×1story
+6ft-20ft

Overall

7501

Males

5706

M18-39

5706

40K→25.2M

24.9 - 25.2 mi

Top 22%
×1story
+13ft-16ft

Overall

6209

Males

4842

M18-39

4842

25.2M→Finish

25.2 - 26.2 mi

Top 28%
×2stories
+22ft-21ft

Overall

8021

Males

5906

M18-39

5906

Passing Analysis

Category:
Athletes Passed
592
Passed By
1837
Net Change
-1245
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#2666
5K → 10K68217-149#2666#2815
10K → 15K50147-97#2815#2912
15K → 20K64115-51#2912#2963
20K → Half2010+10#2963#2953
Half → 25K9435+59#2953#2894
25K → 30K12486+38#2894#2856
30K → 20M16298-282#2856#3138
20M → 21M4843+5#3138#3133
21M → 35K14121-107#3133#3240
35K → 23M31200-169#3240#3409
23M → 24M13204-191#3409#3600
24M → 40K16158-142#3600#3742
40K → 25.2M1245-33#3742#3775
25.2M → Finish22158-136#3775#3911
TOTALS5921837-1245
📊

Passing Visuals

Category:

📈Position Graph

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🎨Heatmap Timeline

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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