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BOSTON MARATHON 2025

John Spellman

Bib: 786•M

CA

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 18%
Gender (Male)
#0 / 16105
Top 29%
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
18:22
Rank: #823
Start → 5K
18:22 | 5:55/mi
10K· 6.21 mi
36:49
Rank: #876 (-53)
5K → 10K
18:27 | 5:56/mi
15K· 9.32 mi
55:32
Rank: #941 (-65)
10K → 15K
18:43 | 6:01/mi
20K· 12.43 mi
1:17:14
Rank: #1826 (-885)
15K → 20K
21:42 | 6:59/mi
Half· 13.11 mi
1:21:24
Rank: #1812 (+14)
20K → Half
4:10 | 6:06/mi
25K· 15.53 mi
1:39:41
Rank: #2846 (-1034)
Half → 25K
18:17 | 7:32/mi
30K· 18.64 mi
2:01:55
Rank: #3266 (-420)
25K → 30K
22:14 | 7:09/mi
20M
2:13:01
Rank: #3773 (-507)
30K → 20M
11:06 | 8:10/mi
21M
2:20:27
Rank: #3772 (+1)
20M → 21M
7:26 | 7:26/mi
35K· 21.75 mi
2:25:37
Rank: #3797 (-25)
21M → 35K
5:10 | 6:54/mi
23M
2:34:50
Rank: #3892 (-95)
35K → 23M
9:13 | 7:22/mi
24M
2:42:59
Rank: #4230 (-338)
23M → 24M
8:09 | 8:09/mi
40K· 24.85 mi
2:51:04
Rank: #4898 (-668)
24M → 40K
8:05 | 9:27/mi
25.2M
2:54:11
Rank: #5002 (-104)
40K → 25.2M
3:07 | 9:02/mi
Finish· 26.22 mi
3:02:09
Rank: #5151 (-149)
25.2M → Finish
7:58 | 7:49/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:21:24
Pace6:13 /mi
2nd Half
Distance13.11 mi
Time1:40:45
Pace7:41 /mi
📊Positive Split: 23.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:18:3718:225:5518:22
5:55
-
10K
6.21 mi10:37:0436:495:5618:27
5:56
+0:01
15K
9.32 mi10:55:4755:325:5718:43
6:01
+0:05
20K
12.43 mi11:17:291:17:146:1321:42
6:59
+0:58
Half
13.11 mi11:21:391:21:246:134:10
6:06
-0:53
25K
15.53 mi11:39:561:39:416:2518:17
7:32
+1:26
30K
18.64 mi12:02:102:01:556:3222:14
7:09
-0:23
20M
20.00 mi12:13:162:13:016:3911:06
8:10
+1:01
21M
21.00 mi12:20:422:20:276:417:26
7:26
-0:44
35K
21.75 mi12:25:522:25:376:425:10
6:54
-0:32
23M
23.00 mi12:35:052:34:506:449:13
7:22
+0:28
24M
24.00 mi12:43:142:42:596:478:09
8:09
+0:47
40K
24.85 mi12:51:192:51:046:538:05
9:27
+1:18
25.2M
25.20 mi12:54:262:54:116:553:07
9:02
-0:25
Finish
26.22 mi13:02:243:02:096:577:58
7:49
-1:13

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

5:55 /mi

Average Pace

6:57 /mi

Slowest Pace

9:27 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

59:42

33% of race

Time at Steady Pace

1:32:00

51% of race

Time at Slower Pace

30:27

17% of race

Average Pace: 6:57 /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 mi10:18:3718:225:5518:22
5:55
#823
10K
6.21 mi10:37:0436:495:5618:27
5:56
#876
15K
9.32 mi10:55:4755:325:5718:43
6:01
#941
20K
12.43 mi11:17:291:17:146:1321:42
6:59
#1826
Half
13.11 mi11:21:391:21:246:134:10
6:06
#1812
25K
15.53 mi11:39:561:39:416:2518:17
7:32
#2846
30K
18.64 mi12:02:102:01:556:3222:14
7:09
#3266
20M
20.00 mi12:13:162:13:016:3911:06
8:10
#3773
21M
21.00 mi12:20:422:20:276:417:26
7:26
#3772
35K
21.75 mi12:25:522:25:376:425:10
6:54
#3797
23M
23.00 mi12:35:052:34:506:449:13
7:22
#3892
24M
24.00 mi12:43:142:42:596:478:09
8:09
#4230
40K
24.85 mi12:51:192:51:046:538:05
9:27
#4898
25.2M
25.20 mi12:54:262:54:116:553:07
9:02
#5002
Finish
26.22 mi13:02:243:02:096:577:58
7:49
#5151
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi8237697691114(Top 4%)1055(Top 7%)1055(Top 19%)
10K6.21 mi3.10 mi876-53822-53822-53938(Top 3%)884(Top 5%)884(Top 16%)
15K9.32 mi3.11 mi941-65885-63885-631114(Top 4%)1055(Top 7%)1055(Top 19%)
20K12.43 mi3.11 mi1826-8851737-8521737-8526764(Top 24%)6025(Top 37%)6025(Top 107%)
Half13.11 mi0.68 mi1812+141723+141723+141572(Top 6%)1495(Top 9%)1495(Top 26%)
25K15.53 mi2.42 mi2846-10342715-9922715-99210277(Top 36%)8019(Top 50%)8019(Top 142%)
30K18.64 mi3.11 mi3266-4203095-3803095-3805636(Top 20%)5039(Top 31%)5039(Top 89%)
20M20.00 mi1.36 mi3773-5073552-4573552-45711552(Top 41%)8302(Top 52%)8302(Top 147%)
21M21.00 mi1.00 mi3772+13546+63546+64273(Top 15%)3831(Top 24%)3831(Top 68%)
35K21.75 mi0.75 mi3797-253567-213567-214745(Top 17%)4188(Top 26%)4188(Top 74%)
23M23.00 mi1.25 mi3892-953634-673634-675791(Top 20%)4839(Top 30%)4839(Top 86%)
24M24.00 mi1.00 mi4230-3383914-2803914-28012198(Top 43%)8254(Top 51%)8254(Top 146%)
40K24.85 mi0.85 mi4898-6684477-5634477-56318479(Top 65%)11046(Top 69%)11046(Top 196%)
25.2M25.20 mi0.35 mi5002-1044563-864563-8611892(Top 42%)7903(Top 49%)7903(Top 140%)
Finish26.22 mi1.02 mi5151-1494673-1104673-11011516(Top 41%)7761(Top 48%)7761(Top 138%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 4%
×21stories
+97ft-345ft

Overall

1114

Males

1055

M18-39

1055

5K→10K

3.1 - 6.2 mi

Top 3%
×5stories
+79ft-138ft

Overall

938

Males

884

M18-39

884

10K→15K

6.2 - 9.3 mi

Top 4%
×3stories
+67ft-78ft

Overall

1114

Males

1055

M18-39

1055

15K→20K

9.3 - 12.4 mi

Top 24%
×5stories
+106ft-86ft

Overall

6764

Males

6025

M18-39

6025

20K→Half

12.4 - 13.1 mi

Top 6%
×2stories
+19ft-37ft

Overall

1572

Males

1495

M18-39

1495

Half→25K

13.1 - 15.5 mi

Top 36%
×4stories
+66ft-88ft

Overall

10277

Males

8019

M18-39

8019

25K→30K

15.5 - 18.6 mi

Top 20%
×9stories
+181ft-148ft

Overall

5636

Males

5039

M18-39

5039

30K→20M

18.6 - 20.0 mi

Top 41%
×5stories
+64ft-50ft

Overall

11552

Males

8302

M18-39

8302

20M→21M

20.0 - 21.0 mi

Top 15%
×8stories
+106ft-24ft

Overall

4273

Males

3831

M18-39

3831

21M→35K

21.0 - 21.8 mi

Top 17%
×7stories
+17ft-86ft

Overall

4745

Males

4188

M18-39

4188

35K→23M

21.8 - 23.0 mi

Top 20%
×5stories
+23ft-63ft

Overall

5791

Males

4839

M18-39

4839

23M→24M

23.0 - 24.0 mi

Top 43%
×6stories
+12ft-82ft

Overall

12198

Males

8254

M18-39

8254

24M→40K

24.0 - 24.9 mi

Top 65%
×1story
+6ft-20ft

Overall

18479

Males

11046

M18-39

11046

40K→25.2M

24.9 - 25.2 mi

Top 42%
×1story
+13ft-16ft

Overall

11892

Males

7903

M18-39

7903

25.2M→Finish

25.2 - 26.2 mi

Top 41%
×2stories
+22ft-21ft

Overall

11516

Males

7761

M18-39

7761

Passing Analysis

Category:
Athletes Passed
250
Passed By
4578
Net Change
-4328
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#823
5K → 10K2679-53#823#876
10K → 15K974-65#876#941
15K → 20K1886-885#941#1826
20K → Half140+14#1826#1812
Half → 25K21036-1034#1812#2846
25K → 30K29449-420#2846#3266
30K → 20M9516-507#3266#3773
20M → 21M6160+1#3773#3772
21M → 35K1843-25#3772#3797
35K → 23M49144-95#3797#3892
23M → 24M13351-338#3892#4230
24M → 40K2670-668#4230#4898
40K → 25.2M8112-104#4898#5002
25.2M → Finish9158-149#5002#5151
TOTALS2504578-4328
📊

Passing Visuals

Category:

📈Position Graph

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🎨Heatmap Timeline

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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