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BOSTON MARATHON 2025

Jack Chefetz

Bib: 26585•M

NY

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

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
7:53/mi
24:30
↑ 97↓ 3451.5%
10K· 6.21 mi
8:09/mi
49:48
↑ 79↓ 1380.4%
15K· 9.32 mi
8:24/mi
1:15:54
↑ 67↓ 78
20K· 12.43 mi
8:40/mi
1:42:51
↑ 106↓ 860.1%
Half· 13.11 mi
8:32/mi
1:48:40
↑ 19↓ 370.5%
25K· 15.53 mi
9:44/mi
2:12:16
↑ 66↓ 880.2%
30K· 18.64 mi
10:50/mi
2:45:55
↑ 181↓ 1480.2%
20M
11:47/mi
3:01:56
↑ 64↓ 500.2%
21M
14:33/mi
3:16:29
↑ 106↓ 241.6%
35K· 21.75 mi
12:06/mi
3:25:32
↑ 17↓ 861.7%
23M
13:32/mi
3:42:29
↑ 23↓ 630.6%
24M
11:58/mi
3:54:27
↓ 821.3%
40K· 24.85 mi
11:42/mi
4:04:27
↓ 200.3%
25.2M
11:33/mi
4:08:26
↑ 13↓ 160.2%
Finish· 26.22 mi
10:51/mi
4:19:29
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:48:40
Pace8:17 /mi
2nd Half
Distance13.11 mi
Time2:30:49
Pace11:30 /mi
📊Positive Split: 38.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:39:3624:307:5324:30
7:53
-
10K
6.21 mi12:04:5449:488:0125:18
8:09
+0:16
15K
9.32 mi12:31:001:15:548:0926:06
8:24
+0:15
20K
12.43 mi12:57:571:42:518:1726:57
8:40
+0:16
Half
13.11 mi13:03:461:48:408:175:49
8:32
-0:08
25K
15.53 mi13:27:222:12:168:3123:36
9:44
+1:12
30K
18.64 mi14:01:012:45:558:5433:39
10:50
+1:06
20M
20.00 mi14:17:023:01:569:0616:01
11:47
+0:57
21M
21.00 mi14:31:353:16:299:2114:33
14:33
+2:46
35K
21.75 mi14:40:383:25:329:279:03
12:06
-2:27
23M
23.00 mi14:57:353:42:299:4016:57
13:32
+1:26
24M
24.00 mi15:09:333:54:279:4611:58
11:58
-1:34
40K
24.85 mi15:19:334:04:279:5010:00
11:42
-0:16
25.2M
25.20 mi15:23:324:08:269:523:59
11:33
-0:09
Finish
26.22 mi15:34:354:19:299:5411:03
10:51
-0:42

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

7:53 /mi

Average Pace

9:54 /mi

Slowest Pace

14:33 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:12:16

51% of race

Time at Steady Pace

1:14:42

29% of race

Time at Slower Pace

52:31

20% of race

Average Pace: 9:54 /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 mi11:39:3624:307:5324:30
7:53
#15546
10K
6.21 mi12:04:5449:488:0125:18
8:09
#16635
15K
9.32 mi12:31:001:15:548:0926:06
8:24
#17382
20K
12.43 mi12:57:571:42:518:1726:57
8:40
#17851
Half
13.11 mi13:03:461:48:408:175:49
8:32
#17906
25K
15.53 mi13:27:222:12:168:3123:36
9:44
#18990
30K
18.64 mi14:01:012:45:558:5433:39
10:50
#20371
20M
20.00 mi14:17:023:01:569:0616:01
11:47
#21012
21M
21.00 mi14:31:353:16:299:2114:33
14:33
#21740
35K
21.75 mi14:40:383:25:329:279:03
12:06
#22002
23M
23.00 mi14:57:353:42:299:4016:57
13:32
#22517
24M
24.00 mi15:09:333:54:279:4611:58
11:58
#22691
40K
24.85 mi15:19:334:04:279:5010:00
11:42
#22779
25.2M
25.20 mi15:23:324:08:269:523:59
11:33
#22769
Finish
26.22 mi15:34:354:19:299:5411:03
10:51
#22900
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi15546106461064618713(Top 66%)11933(Top 74%)11933(Top 212%)
10K6.21 mi3.10 mi16635-108911072-42611072-42617495(Top 62%)11454(Top 71%)11454(Top 203%)
15K9.32 mi3.11 mi17382-74711391-31911391-31918713(Top 66%)11933(Top 74%)11933(Top 212%)
20K12.43 mi3.11 mi17851-46911553-16211553-16219281(Top 68%)12159(Top 75%)12159(Top 216%)
Half13.11 mi0.68 mi17906-5511568-1511568-1519365(Top 68%)12219(Top 76%)12219(Top 217%)
25K15.53 mi2.42 mi18990-108412025-45712025-45722577(Top 79%)13548(Top 84%)13548(Top 240%)
30K18.64 mi3.11 mi20371-138112573-54812573-54823676(Top 83%)13925(Top 86%)13925(Top 247%)
20M20.00 mi1.36 mi21012-64112846-27312846-27324961(Top 88%)14447(Top 90%)14447(Top 256%)
21M21.00 mi1.00 mi21740-72813165-31913165-31926750(Top 94%)15235(Top 95%)15235(Top 270%)
35K21.75 mi0.75 mi22002-26213265-10013265-10025995(Top 92%)14827(Top 92%)14827(Top 263%)
23M23.00 mi1.25 mi22517-51513459-19413459-19426910(Top 95%)15285(Top 95%)15285(Top 271%)
24M24.00 mi1.00 mi22691-17413515-5613515-5625634(Top 90%)14614(Top 91%)14614(Top 259%)
40K24.85 mi0.85 mi22779-8813534-1913534-1924471(Top 86%)14000(Top 87%)14000(Top 248%)
25.2M25.20 mi0.35 mi22769+1013524+1013524+1022170(Top 78%)12875(Top 80%)12875(Top 228%)
Finish26.22 mi1.02 mi22900-13113573-4913573-4925042(Top 88%)14299(Top 89%)14299(Top 253%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 66%
×21story building
+97ft-345ft

Overall

18713

Males

11933

M18-39

11933

5K→10K

3.1 - 6.2 mi

Top 62%
×5story building
+79ft-138ft

Overall

17495

Males

11454

M18-39

11454

10K→15K

6.2 - 9.3 mi

Top 66%
×3story building
+67ft-78ft

Overall

18713

Males

11933

M18-39

11933

15K→20K

9.3 - 12.4 mi

Top 68%
×5story building
+106ft-86ft

Overall

19281

Males

12159

M18-39

12159

20K→Half

12.4 - 13.1 mi

Top 68%
×2story building
+19ft-37ft

Overall

19365

Males

12219

M18-39

12219

Half→25K

13.1 - 15.5 mi

Top 79%
×4story building
+66ft-88ft

Overall

22577

Males

13548

M18-39

13548

25K→30K

15.5 - 18.6 mi

Top 83%
×9story building
+181ft-148ft

Overall

23676

Males

13925

M18-39

13925

30K→20M

18.6 - 20.0 mi

Top 88%
×5story building
+64ft-50ft

Overall

24961

Males

14447

M18-39

14447

20M→21M

20.0 - 21.0 mi

Top 94%
×8story building
+106ft-24ft

Overall

26750

Males

15235

M18-39

15235

21M→35K

21.0 - 21.8 mi

Top 92%
×7story building
+17ft-86ft

Overall

25995

Males

14827

M18-39

14827

35K→23M

21.8 - 23.0 mi

Top 95%
×5story building
+23ft-63ft

Overall

26910

Males

15285

M18-39

15285

23M→24M

23.0 - 24.0 mi

Top 90%
×6story building
+12ft-82ft

Overall

25634

Males

14614

M18-39

14614

24M→40K

24.0 - 24.9 mi

Top 86%
×1story
+6ft-20ft

Overall

24471

Males

14000

M18-39

14000

40K→25.2M

24.9 - 25.2 mi

Top 78%
×1story
+13ft-16ft

Overall

22170

Males

12875

M18-39

12875

25.2M→Finish

25.2 - 26.2 mi

Top 88%
×2story building
+22ft-21ft

Overall

25042

Males

14299

M18-39

14299

Passing Analysis

Category:
Athletes Passed
396
Passed By
7750
Net Change
-7354
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#15546
5K → 10K641153-1089#15546#16635
10K → 15K54801-747#16635#17382
15K → 20K77546-469#17382#17851
20K → Half2075-55#17851#17906
Half → 25K201104-1084#17906#18990
25K → 30K281409-1381#18990#20371
30K → 20M20661-641#20371#21012
20M → 21M9737-728#21012#21740
21M → 35K6268-262#21740#22002
35K → 23M18533-515#22002#22517
23M → 24M24198-174#22517#22691
24M → 40K21109-88#22691#22779
40K → 25.2M2515+10#22779#22769
25.2M → Finish10141-131#22769#22900
TOTALS3967750-7354
📊

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