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BOSTON MARATHON 2025

Jeremy Naylor

Bib: 27581•M

MA

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Male)
#0 / 16105
Masters (Masters Men)
#0 / 10463
Division (M50-54)
#0 / 1996
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
26:25
Rank: #19884
Start → 5K
26:25 | 8:30/mi
10K· 6.21 mi
52:16
Rank: #19303 (+581)
5K → 10K
25:51 | 8:19/mi
15K· 9.32 mi
1:18:27
Rank: #19125 (+178)
10K → 15K
26:11 | 8:26/mi
20K· 12.43 mi
1:44:23
Rank: #18653 (+472)
15K → 20K
25:56 | 8:21/mi
Half· 13.11 mi
1:50:06
Rank: #18627 (+26)
20K → Half
5:43 | 8:23/mi
25K· 15.53 mi
2:10:38
Rank: #18328 (+299)
Half → 25K
20:32 | 8:28/mi
30K· 18.64 mi
2:36:50
Rank: #17556 (+772)
25K → 30K
26:12 | 8:26/mi
20M
2:48:02
Rank: #17140 (+416)
30K → 20M
11:12 | 8:15/mi
21M
2:56:34
Rank: #16752 (+388)
20M → 21M
8:32 | 8:32/mi
35K· 21.75 mi
3:02:38
Rank: #16597 (+155)
21M → 35K
6:04 | 8:07/mi
23M
3:12:53
Rank: #16237 (+360)
35K → 23M
10:15 | 8:11/mi
24M
3:20:42
Rank: #15984 (+253)
23M → 24M
7:49 | 7:49/mi
40K· 24.85 mi
3:27:38
Rank: #15773 (+211)
24M → 40K
6:56 | 8:07/mi
25.2M
3:30:32
Rank: #15645 (+128)
40K → 25.2M
2:54 | 8:25/mi
Finish· 26.22 mi
3:38:32
Rank: #15498 (+147)
25.2M → Finish
8:00 | 7:51/mi

The Course

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Half Splits

1st Half· via Half
Distance13.11 mi
Time1:50:06
Pace8:24 /mi
2nd Half✓ Faster
Distance13.11 mi
Time1:48:26
Pace8:16 /mi
📊Negative Split: 1.5% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:42:2426:258:3026:25
8:30
-
10K
6.21 mi12:08:1552:168:2525:51
8:19
-0:11
15K
9.32 mi12:34:261:18:278:2526:11
8:26
+0:07
20K
12.43 mi13:00:221:44:238:2425:56
8:21
-0:05
Half
13.11 mi13:06:051:50:068:245:43
8:23
+0:02
25K
15.53 mi13:26:372:10:388:2520:32
8:28
+0:05
30K
18.64 mi13:52:492:36:508:2526:12
8:26
-0:02
20M
20.00 mi14:04:012:48:028:2411:12
8:15
-0:11
21M
21.00 mi14:12:332:56:348:248:32
8:32
+0:17
35K
21.75 mi14:18:373:02:388:246:04
8:07
-0:25
23M
23.00 mi14:28:523:12:538:2310:15
8:11
+0:04
24M
24.00 mi14:36:413:20:428:227:49
7:49
-0:22
40K
24.85 mi14:43:373:27:388:216:56
8:07
+0:18
25.2M
25.20 mi14:46:313:30:328:212:54
8:25
+0:18
Finish
26.22 mi14:54:313:38:328:208:00
7:51
-0:34

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

7:49 /mi

Average Pace

8:20 /mi

Slowest Pace

8:32 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

39:04

18% of race

Time at Steady Pace

2:59:28

82% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:20 /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 mi11:42:2426:258:3026:25
8:30
#19884
10K
6.21 mi12:08:1552:168:2525:51
8:19
#19303
15K
9.32 mi12:34:261:18:278:2526:11
8:26
#19125
20K
12.43 mi13:00:221:44:238:2425:56
8:21
#18653
Half
13.11 mi13:06:051:50:068:245:43
8:23
#18627
25K
15.53 mi13:26:372:10:388:2520:32
8:28
#18328
30K
18.64 mi13:52:492:36:508:2526:12
8:26
#17556
20M
20.00 mi14:04:012:48:028:2411:12
8:15
#17140
21M
21.00 mi14:12:332:56:348:248:32
8:32
#16752
35K
21.75 mi14:18:373:02:388:246:04
8:07
#16597
23M
23.00 mi14:28:523:12:538:2310:15
8:11
#16237
24M
24.00 mi14:36:413:20:428:227:49
7:49
#15984
40K
24.85 mi14:43:373:27:388:216:56
8:07
#15773
25.2M
25.20 mi14:46:313:30:328:212:54
8:25
#15645
Finish
26.22 mi14:54:313:38:328:208:00
7:51
#15498
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
5K3.11 mi3.11 mi19884123871238718858(Top 66%)11987(Top 74%)11987(Top 601%)
10K6.21 mi3.10 mi19303+58112176+21112176+21118659(Top 66%)11918(Top 74%)11918(Top 597%)
15K9.32 mi3.11 mi19125+17812095+8112095+8118858(Top 66%)11987(Top 74%)11987(Top 601%)
20K12.43 mi3.11 mi18653+47211891+20411891+20417196(Top 61%)11262(Top 70%)11262(Top 564%)
Half13.11 mi0.68 mi18627+2611879+1211879+1218412(Top 65%)11774(Top 73%)11774(Top 590%)
25K15.53 mi2.42 mi18328+29911736+14311736+14316970(Top 60%)11085(Top 69%)11085(Top 555%)
30K18.64 mi3.11 mi17556+77211348+38811348+38814348(Top 51%)9756(Top 61%)9756(Top 489%)
20M20.00 mi1.36 mi17140+41611163+18511163+18512075(Top 43%)8565(Top 53%)8565(Top 429%)
21M21.00 mi1.00 mi16752+38810972+19110972+19110690(Top 38%)7722(Top 48%)7722(Top 387%)
35K21.75 mi0.75 mi16597+15510886+8610886+8612983(Top 46%)8807(Top 55%)8807(Top 441%)
23M23.00 mi1.25 mi16237+36010710+17610710+17611279(Top 40%)7891(Top 49%)7891(Top 395%)
24M24.00 mi1.00 mi15984+25310568+14210568+1429931(Top 35%)7140(Top 44%)7140(Top 358%)
40K24.85 mi0.85 mi15773+21110454+11410454+11410941(Top 39%)7551(Top 47%)7551(Top 378%)
25.2M25.20 mi0.35 mi15645+12810385+6910385+698268(Top 29%)6092(Top 38%)6092(Top 305%)
Finish26.22 mi1.02 mi15498+14710307+7810307+7811813(Top 42%)7951(Top 49%)7951(Top 398%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 66%
×21stories
+97ft-345ft

Overall

18858

Males

11987

M50-54

11987

5K→10K

3.1 - 6.2 mi

Top 66%
×5stories
+79ft-138ft

Overall

18659

Males

11918

M50-54

11918

10K→15K

6.2 - 9.3 mi

Top 66%
×3stories
+67ft-78ft

Overall

18858

Males

11987

M50-54

11987

15K→20K

9.3 - 12.4 mi

Top 61%
×5stories
+106ft-86ft

Overall

17196

Males

11262

M50-54

11262

20K→Half

12.4 - 13.1 mi

Top 65%
×2stories
+19ft-37ft

Overall

18412

Males

11774

M50-54

11774

Half→25K

13.1 - 15.5 mi

Top 60%
×4stories
+66ft-88ft

Overall

16970

Males

11085

M50-54

11085

25K→30K

15.5 - 18.6 mi

Top 51%
×9stories
+181ft-148ft

Overall

14348

Males

9756

M50-54

9756

30K→20M

18.6 - 20.0 mi

Top 43%
×5stories
+64ft-50ft

Overall

12075

Males

8565

M50-54

8565

20M→21M

20.0 - 21.0 mi

Top 38%
×8stories
+106ft-24ft

Overall

10690

Males

7722

M50-54

7722

21M→35K

21.0 - 21.8 mi

Top 46%
×7stories
+17ft-86ft

Overall

12983

Males

8807

M50-54

8807

35K→23M

21.8 - 23.0 mi

Top 40%
×5stories
+23ft-63ft

Overall

11279

Males

7891

M50-54

7891

23M→24M

23.0 - 24.0 mi

Top 35%
×6stories
+12ft-82ft

Overall

9931

Males

7140

M50-54

7140

24M→40K

24.0 - 24.9 mi

Top 39%
×1story
+6ft-20ft

Overall

10941

Males

7551

M50-54

7551

40K→25.2M

24.9 - 25.2 mi

Top 29%
×1story
+13ft-16ft

Overall

8268

Males

6092

M50-54

6092

25.2M→Finish

25.2 - 26.2 mi

Top 42%
×2stories
+22ft-21ft

Overall

11813

Males

7951

M50-54

7951

Passing Analysis

Category:
Athletes Passed
4690
Passed By
304
Net Change
+4386
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#19884
5K → 10K66483+581#19884#19303
10K → 15K295117+178#19303#19125
15K → 20K49422+472#19125#18653
20K → Half4923+26#18653#18627
Half → 25K33031+299#18627#18328
25K → 30K7753+772#18328#17556
30K → 20M4182+416#17556#17140
20M → 21M3880+388#17140#16752
21M → 35K1616+155#16752#16597
35K → 23M3677+360#16597#16237
23M → 24M2541+253#16237#15984
24M → 40K2121+211#15984#15773
40K → 25.2M1280+128#15773#15645
25.2M → Finish1558+147#15645#15498
TOTALS4690304+4386
📊

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