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BOSTON MARATHON 2025

Carter Auth

Bib: 3214•M

CO

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Overall
#0 / 28404
Gender (Male)
#0 / 16105
Division (M18-39)
#0 / 5642
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
25:05
Rank: #17164
Start → 5K
25:05 | 8:04/mi
10K· 6.21 mi
51:11
Rank: #18212 (-1048)
5K → 10K
26:06 | 8:24/mi
15K· 9.32 mi
1:16:47
Rank: #18022 (+190)
10K → 15K
25:36 | 8:14/mi
20K· 12.43 mi
1:42:34
Rank: #17705 (+317)
15K → 20K
25:47 | 8:18/mi
Half· 13.11 mi
1:48:14
Rank: #17707 (-2)
20K → Half
5:40 | 8:18/mi
25K· 15.53 mi
2:08:28
Rank: #17411 (+296)
Half → 25K
20:14 | 8:21/mi
30K· 18.64 mi
2:34:53
Rank: #16880 (+531)
25K → 30K
26:25 | 8:30/mi
20M
2:46:37
Rank: #16706 (+174)
30K → 20M
11:44 | 8:38/mi
21M
2:55:43
Rank: #16506 (+200)
20M → 21M
9:06 | 9:06/mi
35K· 21.75 mi
3:02:18
Rank: #16503 (+3)
21M → 35K
6:35 | 8:48/mi
23M
3:13:35
Rank: #16443 (+60)
35K → 23M
11:17 | 9:01/mi
24M
3:22:32
Rank: #16477 (-34)
23M → 24M
8:57 | 8:57/mi
40K· 24.85 mi
3:30:29
Rank: #16531 (-54)
24M → 40K
7:57 | 9:18/mi
25.2M
3:33:58
Rank: #16559 (-28)
40K → 25.2M
3:29 | 10:06/mi
Finish· 26.22 mi
3:43:07
Rank: #16654 (-95)
25.2M → Finish
9:09 | 8:59/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:48:14
Pace8:15 /mi
2nd Half
Distance13.11 mi
Time1:54:53
Pace8:46 /mi
📊Positive Split: 6.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:30:0425:058:0425:05
8:04
-
10K
6.21 mi10:56:1051:118:1426:06
8:24
+0:20
15K
9.32 mi11:21:461:16:478:1425:36
8:14
-0:10
20K
12.43 mi11:47:331:42:348:1525:47
8:18
+0:04
Half
13.11 mi11:53:131:48:148:155:40
8:18
0:00
25K
15.53 mi12:13:272:08:288:1620:14
8:21
+0:03
30K
18.64 mi12:39:522:34:538:1926:25
8:30
+0:09
20M
20.00 mi12:51:362:46:378:2011:44
8:38
+0:08
21M
21.00 mi13:00:422:55:438:229:06
9:06
+0:28
35K
21.75 mi13:07:173:02:188:236:35
8:48
-0:18
23M
23.00 mi13:18:343:13:358:2511:17
9:01
+0:13
24M
24.00 mi13:27:313:22:328:268:57
8:57
-0:04
40K
24.85 mi13:35:283:30:298:287:57
9:18
+0:21
25.2M
25.20 mi13:38:573:33:588:293:29
10:06
+0:48
Finish
26.22 mi13:48:063:43:078:319:09
8:59
-1:07

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

8:04 /mi

Average Pace

8:31 /mi

Slowest Pace

10:06 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:42:22

46% of race

Time at Steady Pace

1:10:50

32% of race

Time at Slower Pace

49:55

22% of race

Average Pace: 8:31 /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 mi10:30:0425:058:0425:05
8:04
#17164
10K
6.21 mi10:56:1051:118:1426:06
8:24
#18212
15K
9.32 mi11:21:461:16:478:1425:36
8:14
#18022
20K
12.43 mi11:47:331:42:348:1525:47
8:18
#17705
Half
13.11 mi11:53:131:48:148:155:40
8:18
#17707
25K
15.53 mi12:13:272:08:288:1620:14
8:21
#17411
30K
18.64 mi12:39:522:34:538:1926:25
8:30
#16880
20M
20.00 mi12:51:362:46:378:2011:44
8:38
#16706
21M
21.00 mi13:00:422:55:438:229:06
9:06
#16506
35K
21.75 mi13:07:173:02:188:236:35
8:48
#16503
23M
23.00 mi13:18:343:13:358:2511:17
9:01
#16443
24M
24.00 mi13:27:313:22:328:268:57
8:57
#16477
40K
24.85 mi13:35:283:30:298:287:57
9:18
#16531
25.2M
25.20 mi13:38:573:33:588:293:29
10:06
#16559
Finish
26.22 mi13:48:063:43:078:319:09
8:59
#16654
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi17164112771127717636(Top 62%)11481(Top 71%)11481(Top 203%)
10K6.21 mi3.10 mi18212-104811700-42311700-42319187(Top 68%)12135(Top 75%)12135(Top 215%)
15K9.32 mi3.11 mi18022+19011624+7611624+7617636(Top 62%)11481(Top 71%)11481(Top 203%)
20K12.43 mi3.11 mi17705+31711495+12911495+12916927(Top 60%)11144(Top 69%)11144(Top 198%)
Half13.11 mi0.68 mi17707-2114951149517912(Top 63%)11582(Top 72%)11582(Top 205%)
25K15.53 mi2.42 mi17411+29611353+14211353+14216205(Top 57%)10734(Top 67%)10734(Top 190%)
30K18.64 mi3.11 mi16880+53111087+26611087+26614764(Top 52%)9954(Top 62%)9954(Top 176%)
20M20.00 mi1.36 mi16706+17410992+9510992+9514632(Top 52%)9755(Top 61%)9755(Top 173%)
21M21.00 mi1.00 mi16506+20010870+12210870+12214094(Top 50%)9383(Top 58%)9383(Top 166%)
35K21.75 mi0.75 mi16503+310849+2110849+2117227(Top 61%)10705(Top 66%)10705(Top 190%)
23M23.00 mi1.25 mi16443+6010805+4410805+4416315(Top 57%)10203(Top 63%)10203(Top 181%)
24M24.00 mi1.00 mi16477-3410784+2110784+2117090(Top 60%)10498(Top 65%)10498(Top 186%)
40K24.85 mi0.85 mi16531-5410781+310781+317825(Top 63%)10730(Top 67%)10730(Top 190%)
25.2M25.20 mi0.35 mi16559-28107811078117418(Top 61%)10558(Top 66%)10558(Top 187%)
Finish26.22 mi1.02 mi16654-9510789-810789-818905(Top 67%)11305(Top 70%)11305(Top 200%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 62%
×21stories
+97ft-345ft

Overall

17636

Males

11481

M18-39

11481

5K→10K

3.1 - 6.2 mi

Top 68%
×5stories
+79ft-138ft

Overall

19187

Males

12135

M18-39

12135

10K→15K

6.2 - 9.3 mi

Top 62%
×3stories
+67ft-78ft

Overall

17636

Males

11481

M18-39

11481

15K→20K

9.3 - 12.4 mi

Top 60%
×5stories
+106ft-86ft

Overall

16927

Males

11144

M18-39

11144

20K→Half

12.4 - 13.1 mi

Top 63%
×2stories
+19ft-37ft

Overall

17912

Males

11582

M18-39

11582

Half→25K

13.1 - 15.5 mi

Top 57%
×4stories
+66ft-88ft

Overall

16205

Males

10734

M18-39

10734

25K→30K

15.5 - 18.6 mi

Top 52%
×9stories
+181ft-148ft

Overall

14764

Males

9954

M18-39

9954

30K→20M

18.6 - 20.0 mi

Top 52%
×5stories
+64ft-50ft

Overall

14632

Males

9755

M18-39

9755

20M→21M

20.0 - 21.0 mi

Top 50%
×8stories
+106ft-24ft

Overall

14094

Males

9383

M18-39

9383

21M→35K

21.0 - 21.8 mi

Top 61%
×7stories
+17ft-86ft

Overall

17227

Males

10705

M18-39

10705

35K→23M

21.8 - 23.0 mi

Top 57%
×5stories
+23ft-63ft

Overall

16315

Males

10203

M18-39

10203

23M→24M

23.0 - 24.0 mi

Top 60%
×6stories
+12ft-82ft

Overall

17090

Males

10498

M18-39

10498

24M→40K

24.0 - 24.9 mi

Top 63%
×1story
+6ft-20ft

Overall

17825

Males

10730

M18-39

10730

40K→25.2M

24.9 - 25.2 mi

Top 61%
×1story
+13ft-16ft

Overall

17418

Males

10558

M18-39

10558

25.2M→Finish

25.2 - 26.2 mi

Top 67%
×2stories
+22ft-21ft

Overall

18905

Males

11305

M18-39

11305

Passing Analysis

Category:
Athletes Passed
2442
Passed By
1932
Net Change
+510
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#17164
5K → 10K491097-1048#17164#18212
10K → 15K28999+190#18212#18022
15K → 20K36952+317#18022#17705
20K → Half3537-2#17705#17707
Half → 25K33135+296#17707#17411
25K → 30K54817+531#17411#16880
30K → 20M20127+174#16880#16706
20M → 21M21313+200#16706#16506
21M → 35K6562+3#16506#16503
35K → 23M14181+60#16503#16443
23M → 24M68102-34#16443#16477
24M → 40K59113-54#16477#16531
40K → 25.2M2250-28#16531#16559
25.2M → Finish52147-95#16559#16654
TOTALS24421932+510
📊

Passing Visuals

Category:
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🔥Passing Intensity

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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