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BOSTON MARATHON 2025

Connor Belthoff

Bib: 32325•M

NJ

0:00
0:00
/ mi
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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
32:12
Rank: #26445
Start → 5K
10:22/mi
32:12 split
10K· 6.21 mi
1:05:04
Rank: #26441 (+4)
5K → 10K
10:35/mi
32:52 split
15K· 9.32 mi
1:38:28
Rank: #26392 (+49)
10K → 15K
10:45/mi
33:24 split
20K· 12.43 mi
2:13:05
Rank: #26338 (+54)
15K → 20K
11:09/mi
34:37 split
Half· 13.11 mi
2:20:39
Rank: #26361 (-23)
20K → Half
11:05/mi
7:34 split
25K· 15.53 mi
2:52:14
Rank: #26621 (-260)
Half → 25K
13:02/mi
31:35 split
30K· 18.64 mi
3:27:04
Rank: #26240 (+381)
25K → 30K
11:13/mi
34:50 split
20M
3:42:50
Rank: #26133 (+107)
30K → 20M
11:36/mi
15:46 split
21M
3:55:00
Rank: #26020 (+113)
20M → 21M
12:10/mi
12:10 split
35K· 21.75 mi
4:03:51
Rank: #26012 (+8)
21M → 35K
11:50/mi
8:51 split
23M
4:19:56
Rank: #26052 (-40)
35K → 23M
12:51/mi
16:05 split
24M
4:31:57
Rank: #26052
23M → 24M
12:01/mi
12:01 split
40K· 24.85 mi
4:41:35
Rank: #25994 (+58)
24M → 40K
11:16/mi
9:38 split
25.2M
4:45:28
Rank: #25956 (+38)
40K → 25.2M
11:16/mi
3:53 split
Finish· 26.22 mi
4:55:57
Rank: #25904 (+52)
25.2M → Finish
10:17/mi
10:29 split

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:20:39
Pace10:44 /mi
2nd Half
Distance13.11 mi
Time2:35:18
Pace11:51 /mi
📊Positive Split: 10.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:57:2032:1210:2232:12
10:22
-
10K
6.21 mi12:30:121:05:0410:2832:52
10:35
+0:13
15K
9.32 mi13:03:361:38:2810:3433:24
10:45
+0:10
20K
12.43 mi13:38:132:13:0510:4334:37
11:09
+0:24
Half
13.11 mi13:45:472:20:3910:447:34
11:05
-0:04
25K
15.53 mi14:17:222:52:1411:0531:35
13:02
+1:57
30K
18.64 mi14:52:123:27:0411:0634:50
11:13
-1:49
20M
20.00 mi15:07:583:42:5011:0815:46
11:36
+0:23
21M
21.00 mi15:20:083:55:0011:1112:10
12:10
+0:34
35K
21.75 mi15:28:594:03:5111:138:51
11:50
-0:20
23M
23.00 mi15:45:044:19:5611:1816:05
12:51
+1:01
24M
24.00 mi15:57:054:31:5711:2012:01
12:01
-0:50
40K
24.85 mi16:06:434:41:3511:209:38
11:16
-0:45
25.2M
25.20 mi16:10:364:45:2811:203:53
11:16
0:00
Finish
26.22 mi16:21:054:55:5711:1810:29
10:17
-0:59

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

10:17 /mi

Average Pace

11:18 /mi

Slowest Pace

13:02 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:48:57

37% of race

Time at Steady Pace

1:46:18

36% of race

Time at Slower Pace

1:20:42

27% of race

Average Pace: 11:17 /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 mi11:57:2032:1210:2232:12
10:22
#26445
10K
6.21 mi12:30:121:05:0410:2832:52
10:35
#26441
15K
9.32 mi13:03:361:38:2810:3433:24
10:45
#26392
20K
12.43 mi13:38:132:13:0510:4334:37
11:09
#26338
Half
13.11 mi13:45:472:20:3910:447:34
11:05
#26361
25K
15.53 mi14:17:222:52:1411:0531:35
13:02
#26621
30K
18.64 mi14:52:123:27:0411:0634:50
11:13
#26240
20M
20.00 mi15:07:583:42:5011:0815:46
11:36
#26133
21M
21.00 mi15:20:083:55:0011:1112:10
12:10
#26020
35K
21.75 mi15:28:594:03:5111:138:51
11:50
#26012
23M
23.00 mi15:45:044:19:5611:1816:05
12:51
#26052
24M
24.00 mi15:57:054:31:5711:2012:01
12:01
#26052
40K
24.85 mi16:06:434:41:3511:209:38
11:16
#25994
25.2M
25.20 mi16:10:364:45:2811:203:53
11:16
#25956
Finish
26.22 mi16:21:054:55:5711:1810:29
10:17
#25904
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi26445153781537826331(Top 93%)15302(Top 95%)15302(Top 271%)
10K6.21 mi3.10 mi26441+415356+2215356+2226412(Top 93%)15328(Top 95%)15328(Top 272%)
15K9.32 mi3.11 mi26392+4915329+2715329+2726331(Top 93%)15302(Top 95%)15302(Top 271%)
20K12.43 mi3.11 mi26338+5415302+2715302+2726213(Top 92%)15224(Top 95%)15224(Top 270%)
Half13.11 mi0.68 mi26361-2315310-815310-826630(Top 94%)15365(Top 95%)15365(Top 272%)
25K15.53 mi2.42 mi26621-26015398-8815398-8827313(Top 96%)15643(Top 97%)15643(Top 277%)
30K18.64 mi3.11 mi26240+38115220+17815220+17824396(Top 86%)14261(Top 89%)14261(Top 253%)
20M20.00 mi1.36 mi26133+10715155+6515155+6524722(Top 87%)14334(Top 89%)14334(Top 254%)
21M21.00 mi1.00 mi26020+11315094+6115094+6123873(Top 84%)13857(Top 86%)13857(Top 246%)
35K21.75 mi0.75 mi26012+815083+1115083+1125617(Top 90%)14644(Top 91%)14644(Top 260%)
23M23.00 mi1.25 mi26052-4015098-1515098-1526211(Top 92%)14942(Top 93%)14942(Top 265%)
24M24.00 mi1.00 mi2605215085+1315085+1325704(Top 90%)14656(Top 91%)14656(Top 260%)
40K24.85 mi0.85 mi25994+5815056+2915056+2923705(Top 83%)13617(Top 85%)13617(Top 241%)
25.2M25.20 mi0.35 mi25956+3815031+2515031+2521422(Top 75%)12511(Top 78%)12511(Top 222%)
Finish26.22 mi1.02 mi25904+5214997+3414997+3423762(Top 84%)13652(Top 85%)13652(Top 242%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 93%
×21stories
+97ft-345ft

Overall

26331

Males

15302

M18-39

15302

5K→10K

3.1 - 6.2 mi

Top 93%
×5stories
+79ft-138ft

Overall

26412

Males

15328

M18-39

15328

10K→15K

6.2 - 9.3 mi

Top 93%
×3stories
+67ft-78ft

Overall

26331

Males

15302

M18-39

15302

15K→20K

9.3 - 12.4 mi

Top 92%
×5stories
+106ft-86ft

Overall

26213

Males

15224

M18-39

15224

20K→Half

12.4 - 13.1 mi

Top 94%
×2stories
+19ft-37ft

Overall

26630

Males

15365

M18-39

15365

Half→25K

13.1 - 15.5 mi

Top 96%
×4stories
+66ft-88ft

Overall

27313

Males

15643

M18-39

15643

25K→30K

15.5 - 18.6 mi

Top 86%
×9stories
+181ft-148ft

Overall

24396

Males

14261

M18-39

14261

30K→20M

18.6 - 20.0 mi

Top 87%
×5stories
+64ft-50ft

Overall

24722

Males

14334

M18-39

14334

20M→21M

20.0 - 21.0 mi

Top 84%
×8stories
+106ft-24ft

Overall

23873

Males

13857

M18-39

13857

21M→35K

21.0 - 21.8 mi

Top 90%
×7stories
+17ft-86ft

Overall

25617

Males

14644

M18-39

14644

35K→23M

21.8 - 23.0 mi

Top 92%
×5stories
+23ft-63ft

Overall

26211

Males

14942

M18-39

14942

23M→24M

23.0 - 24.0 mi

Top 90%
×6stories
+12ft-82ft

Overall

25704

Males

14656

M18-39

14656

24M→40K

24.0 - 24.9 mi

Top 83%
×1story
+6ft-20ft

Overall

23705

Males

13617

M18-39

13617

40K→25.2M

24.9 - 25.2 mi

Top 75%
×1story
+13ft-16ft

Overall

21422

Males

12511

M18-39

12511

25.2M→Finish

25.2 - 26.2 mi

Top 84%
×2stories
+22ft-21ft

Overall

23762

Males

13652

M18-39

13652

Passing Analysis

Category:
Athletes Passed
1365
Passed By
824
Net Change
+541
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#26445
5K → 10K169165+4#26445#26441
10K → 15K14596+49#26441#26392
15K → 20K14894+54#26392#26338
20K → Half1538-23#26338#26361
Half → 25K25285-260#26361#26621
25K → 30K3843+381#26621#26240
30K → 20M1136+107#26240#26133
20M → 21M1185+113#26133#26020
21M → 35K3325+8#26020#26012
35K → 23M2565-40#26012#26052
23M → 24M28280#26052#26052
24M → 40K602+58#26052#25994
40K → 25.2M391+38#25994#25956
25.2M → Finish6311+52#25956#25904
TOTALS1365824+541
📊

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