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BOSTON MARATHON 2025

Jay Bolton

Bib: 31853•M

CT

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Male)
#0 / 16105
Masters (Masters Men)
#0 / 10463
Division (M45-49)
#0 / 2386
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
8:35/mi
26:41
↑ 97↓ 3451.5%
10K· 6.21 mi
8:31/mi
53:08
↑ 79↓ 1380.4%
15K· 9.32 mi
8:50/mi
1:20:35
↑ 67↓ 78
20K· 12.43 mi
11:42/mi
1:56:57
↑ 106↓ 860.1%
Half· 13.11 mi
9:18/mi
2:03:18
↑ 19↓ 370.5%
25K· 15.53 mi
11:52/mi
2:32:05
↑ 66↓ 880.2%
30K· 18.64 mi
11:50/mi
3:08:51
↑ 181↓ 1480.2%
20M
11:24/mi
3:24:20
↑ 64↓ 500.2%
21M
13:21/mi
3:37:41
↑ 106↓ 241.6%
35K· 21.75 mi
10:12/mi
3:45:19
↑ 17↓ 861.7%
23M
11:51/mi
4:00:09
↑ 23↓ 630.6%
24M
10:15/mi
4:10:24
↓ 821.3%
40K· 24.85 mi
11:03/mi
4:19:51
↓ 200.3%
25.2M
12:05/mi
4:24:01
↑ 13↓ 160.2%
Finish· 26.22 mi
9:35/mi
4:33:47
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:03:18
Pace9:24 /mi
2nd Half
Distance13.11 mi
Time2:30:29
Pace11:29 /mi
📊Positive Split: 22.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:49:5426:418:3526:41
8:35
-
10K
6.21 mi12:16:2153:088:3326:27
8:31
-0:04
15K
9.32 mi12:43:481:20:358:3927:27
8:50
+0:19
20K
12.43 mi13:20:101:56:579:2536:22
11:42
+2:52
Half
13.11 mi13:26:312:03:189:246:21
9:18
-2:24
25K
15.53 mi13:55:182:32:059:4728:47
11:52
+2:34
30K
18.64 mi14:32:043:08:5110:0836:46
11:50
-0:02
20M
20.00 mi14:47:333:24:2010:1315:29
11:24
-0:26
21M
21.00 mi15:00:543:37:4110:2213:21
13:21
+1:57
35K
21.75 mi15:08:323:45:1910:227:38
10:12
-3:09
23M
23.00 mi15:23:224:00:0910:2614:50
11:51
+1:39
24M
24.00 mi15:33:374:10:2410:2610:15
10:15
-1:36
40K
24.85 mi15:43:044:19:5110:279:27
11:03
+0:48
25.2M
25.20 mi15:47:144:24:0110:294:10
12:05
+1:02
Finish
26.22 mi15:57:004:33:4710:279:46
9:35
-2:30

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

8:31 /mi

Average Pace

10:27 /mi

Slowest Pace

13:21 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:54:35

42% of race

Time at Steady Pace

1:01:18

22% of race

Time at Slower Pace

1:37:54

36% of race

Average Pace: 10:27 /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 mi11:49:5426:418:3526:41
8:35
#20394
10K
6.21 mi12:16:2153:088:3326:27
8:31
#20142
15K
9.32 mi12:43:481:20:358:3927:27
8:50
#20452
20K
12.43 mi13:20:101:56:579:2536:22
11:42
#23501
Half
13.11 mi13:26:312:03:189:246:21
9:18
#23466
25K
15.53 mi13:55:182:32:059:4728:47
11:52
#24229
30K
18.64 mi14:32:043:08:5110:0836:46
11:50
#24519
20M
20.00 mi14:47:333:24:2010:1315:29
11:24
#24526
21M
21.00 mi15:00:543:37:4110:2213:21
13:21
#24603
35K
21.75 mi15:08:323:45:1910:227:38
10:12
#24544
23M
23.00 mi15:23:224:00:0910:2614:50
11:51
#24578
24M
24.00 mi15:33:374:10:2410:2610:15
10:15
#24489
40K
24.85 mi15:43:044:19:5110:279:27
11:03
#24444
25.2M
25.20 mi15:47:144:24:0110:294:10
12:05
#24436
Finish
26.22 mi15:57:004:33:4710:279:46
9:35
#24350
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM45-49Seg. OverallSeg. MalesSeg. M45-49
5K3.11 mi3.11 mi20394126001260021199(Top 75%)13035(Top 81%)13035(Top 546%)
10K6.21 mi3.10 mi20142+25212527+7312527+7319879(Top 70%)12426(Top 77%)12426(Top 521%)
15K9.32 mi3.11 mi20452-31012668-14112668-14121199(Top 75%)13035(Top 81%)13035(Top 546%)
20K12.43 mi3.11 mi23501-304914035-136714035-136726844(Top 95%)15476(Top 96%)15476(Top 649%)
Half13.11 mi0.68 mi23466+3514024+1114024+1122981(Top 81%)13789(Top 86%)13789(Top 578%)
25K15.53 mi2.42 mi24229-76314329-30514329-30526283(Top 93%)15198(Top 94%)15198(Top 637%)
30K18.64 mi3.11 mi24519-29014442-11314442-11325364(Top 89%)14705(Top 91%)14705(Top 616%)
20M20.00 mi1.36 mi24526-714435+714435+724357(Top 86%)14151(Top 88%)14151(Top 593%)
21M21.00 mi1.00 mi24603-7714452-1714452-1725505(Top 90%)14630(Top 91%)14630(Top 613%)
35K21.75 mi0.75 mi24544+5914415+3714415+3722439(Top 79%)13127(Top 82%)13127(Top 550%)
23M23.00 mi1.25 mi24578-3414410+514410+524856(Top 88%)14270(Top 89%)14270(Top 598%)
24M24.00 mi1.00 mi24489+8914363+4714363+4722087(Top 78%)12856(Top 80%)12856(Top 539%)
40K24.85 mi0.85 mi24444+4514337+2614337+2623269(Top 82%)13379(Top 83%)13379(Top 561%)
25.2M25.20 mi0.35 mi24436+814328+914328+923401(Top 82%)13481(Top 84%)13481(Top 565%)
Finish26.22 mi1.02 mi24350+8614267+6114267+6121488(Top 76%)12535(Top 78%)12535(Top 525%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 75%
×21story building
+97ft-345ft

Overall

21199

Males

13035

M45-49

13035

5K→10K

3.1 - 6.2 mi

Top 70%
×5story building
+79ft-138ft

Overall

19879

Males

12426

M45-49

12426

10K→15K

6.2 - 9.3 mi

Top 75%
×3story building
+67ft-78ft

Overall

21199

Males

13035

M45-49

13035

15K→20K

9.3 - 12.4 mi

Top 95%
×5story building
+106ft-86ft

Overall

26844

Males

15476

M45-49

15476

20K→Half

12.4 - 13.1 mi

Top 81%
×2story building
+19ft-37ft

Overall

22981

Males

13789

M45-49

13789

Half→25K

13.1 - 15.5 mi

Top 93%
×4story building
+66ft-88ft

Overall

26283

Males

15198

M45-49

15198

25K→30K

15.5 - 18.6 mi

Top 89%
×9story building
+181ft-148ft

Overall

25364

Males

14705

M45-49

14705

30K→20M

18.6 - 20.0 mi

Top 86%
×5story building
+64ft-50ft

Overall

24357

Males

14151

M45-49

14151

20M→21M

20.0 - 21.0 mi

Top 90%
×8story building
+106ft-24ft

Overall

25505

Males

14630

M45-49

14630

21M→35K

21.0 - 21.8 mi

Top 79%
×7story building
+17ft-86ft

Overall

22439

Males

13127

M45-49

13127

35K→23M

21.8 - 23.0 mi

Top 88%
×5story building
+23ft-63ft

Overall

24856

Males

14270

M45-49

14270

23M→24M

23.0 - 24.0 mi

Top 78%
×6story building
+12ft-82ft

Overall

22087

Males

12856

M45-49

12856

24M→40K

24.0 - 24.9 mi

Top 82%
×1story
+6ft-20ft

Overall

23269

Males

13379

M45-49

13379

40K→25.2M

24.9 - 25.2 mi

Top 82%
×1story
+13ft-16ft

Overall

23401

Males

13481

M45-49

13481

25.2M→Finish

25.2 - 26.2 mi

Top 76%
×2story building
+22ft-21ft

Overall

21488

Males

12535

M45-49

12535

Passing Analysis

Category:
Athletes Passed
1124
Passed By
5080
Net Change
-3956
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#20394
5K → 10K433181+252#20394#20142
10K → 15K101411-310#20142#20452
15K → 20K43053-3049#20452#23501
20K → Half4712+35#23501#23466
Half → 25K14777-763#23466#24229
25K → 30K55345-290#24229#24519
30K → 20M5259-7#24519#24526
20M → 21M39116-77#24526#24603
21M → 35K689+59#24603#24544
35K → 23M4478-34#24544#24578
23M → 24M989+89#24578#24489
24M → 40K5611+45#24489#24444
40K → 25.2M2113+8#24444#24436
25.2M → Finish926+86#24436#24350
TOTALS11245080-3956
📊

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