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BOSTON MARATHON 2025

John Sperrazza

Bib: 31825•M

MA

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
10:09/mi
31:31
↑ 97↓ 3451.5%
10K· 6.21 mi
10:05/mi
1:02:52
↑ 79↓ 1380.4%
15K· 9.32 mi
10:00/mi
1:33:57
↑ 67↓ 78
20K· 12.43 mi
10:14/mi
2:05:45
↑ 106↓ 860.1%
Half· 13.11 mi
10:23/mi
2:12:50
↑ 19↓ 370.5%
25K· 15.53 mi
10:41/mi
2:38:45
↑ 66↓ 880.2%
30K· 18.64 mi
12:04/mi
3:16:15
↑ 181↓ 1480.2%
20M
12:47/mi
3:33:37
↑ 64↓ 500.2%
21M
13:10/mi
3:46:47
↑ 106↓ 241.6%
35K· 21.75 mi
11:56/mi
3:55:43
↑ 17↓ 861.7%
23M
13:10/mi
4:12:12
↑ 23↓ 630.6%
24M
12:07/mi
4:24:19
↓ 821.3%
40K· 24.85 mi
13:19/mi
4:35:42
↓ 200.3%
25.2M
14:01/mi
4:40:32
↑ 13↓ 160.2%
Finish· 26.22 mi
11:12/mi
4:51:57
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:12:50
Pace10:08 /mi
2nd Half
Distance13.11 mi
Time2:39:07
Pace12:08 /mi
📊Positive Split: 19.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:54:0631:3110:0931:31
10:09
-
10K
6.21 mi12:25:271:02:5210:0731:21
10:05
-0:04
15K
9.32 mi12:56:321:33:5710:0531:05
10:00
-0:05
20K
12.43 mi13:28:202:05:4510:0731:48
10:14
+0:14
Half
13.11 mi13:35:252:12:5010:087:05
10:23
+0:09
25K
15.53 mi14:01:202:38:4510:1325:55
10:41
+0:18
30K
18.64 mi14:38:503:16:1510:3237:30
12:04
+1:23
20M
20.00 mi14:56:123:33:3710:4117:22
12:47
+0:43
21M
21.00 mi15:09:223:46:4710:4813:10
13:10
+0:23
35K
21.75 mi15:18:183:55:4310:508:56
11:56
-1:14
23M
23.00 mi15:34:474:12:1210:5816:29
13:10
+1:14
24M
24.00 mi15:46:544:24:1911:0112:07
12:07
-1:03
40K
24.85 mi15:58:174:35:4211:0611:23
13:19
+1:12
25.2M
25.20 mi16:03:074:40:3211:084:50
14:01
+0:42
Finish
26.22 mi16:14:324:51:5711:0911:25
11:12
-2:49

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

10:00 /mi

Average Pace

11:09 /mi

Slowest Pace

14:01 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:50:10

58% of race

Time at Steady Pace

58:33

20% of race

Time at Slower Pace

1:03:14

22% of race

Average Pace: 11:08 /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 mi11:54:0631:3110:0931:31
10:09
#25935
10K
6.21 mi12:25:271:02:5210:0731:21
10:05
#25696
15K
9.32 mi12:56:321:33:5710:0531:05
10:00
#25489
20K
12.43 mi13:28:202:05:4510:0731:48
10:14
#25272
Half
13.11 mi13:35:252:12:5010:087:05
10:23
#25281
25K
15.53 mi14:01:202:38:4510:1325:55
10:41
#25161
30K
18.64 mi14:38:503:16:1510:3237:30
12:04
#25290
20M
20.00 mi14:56:123:33:3710:4117:22
12:47
#25385
21M
21.00 mi15:09:223:46:4710:4813:10
13:10
#25402
35K
21.75 mi15:18:183:55:4310:508:56
11:56
#25417
23M
23.00 mi15:34:474:12:1210:5816:29
13:10
#25510
24M
24.00 mi15:46:544:24:1911:0112:07
12:07
#25542
40K
24.85 mi15:58:174:35:4211:0611:23
13:19
#25624
25.2M
25.20 mi16:03:074:40:3211:084:50
14:01
#25643
Finish
26.22 mi16:14:324:51:5711:0911:25
11:12
#25645
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi25935151461514624996(Top 88%)14723(Top 91%)14723(Top 261%)
10K6.21 mi3.10 mi25696+23915032+11415032+11425512(Top 90%)14917(Top 93%)14917(Top 264%)
15K9.32 mi3.11 mi25489+20714936+9614936+9624996(Top 88%)14723(Top 91%)14723(Top 261%)
20K12.43 mi3.11 mi25272+21714820+11614820+11624720(Top 87%)14542(Top 90%)14542(Top 258%)
Half13.11 mi0.68 mi25281-914819+114819+125599(Top 90%)14937(Top 93%)14937(Top 265%)
25K15.53 mi2.42 mi25161+12014752+6714752+6724698(Top 87%)14509(Top 90%)14509(Top 257%)
30K18.64 mi3.11 mi25290-12914783-3114783-3125684(Top 90%)14840(Top 92%)14840(Top 263%)
20M20.00 mi1.36 mi25385-9514814-3114814-3126222(Top 92%)15027(Top 93%)15027(Top 266%)
21M21.00 mi1.00 mi25402-1714800+1414800+1425274(Top 89%)14504(Top 90%)14504(Top 257%)
35K21.75 mi0.75 mi25417-1514802-214802-225780(Top 91%)14721(Top 91%)14721(Top 261%)
23M23.00 mi1.25 mi25510-9314832-3014832-3026573(Top 94%)15119(Top 94%)15119(Top 268%)
24M24.00 mi1.00 mi25542-3214837-514837-525814(Top 91%)14707(Top 91%)14707(Top 261%)
40K24.85 mi0.85 mi25624-8214863-2614863-2626599(Top 94%)15085(Top 94%)15085(Top 267%)
25.2M25.20 mi0.35 mi25643-1914868-514868-526301(Top 93%)14892(Top 92%)14892(Top 264%)
Finish26.22 mi1.02 mi25645-214861+714861+725705(Top 90%)14637(Top 91%)14637(Top 259%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 88%
×21story building
+97ft-345ft

Overall

24996

Males

14723

M18-39

14723

5K→10K

3.1 - 6.2 mi

Top 90%
×5story building
+79ft-138ft

Overall

25512

Males

14917

M18-39

14917

10K→15K

6.2 - 9.3 mi

Top 88%
×3story building
+67ft-78ft

Overall

24996

Males

14723

M18-39

14723

15K→20K

9.3 - 12.4 mi

Top 87%
×5story building
+106ft-86ft

Overall

24720

Males

14542

M18-39

14542

20K→Half

12.4 - 13.1 mi

Top 90%
×2story building
+19ft-37ft

Overall

25599

Males

14937

M18-39

14937

Half→25K

13.1 - 15.5 mi

Top 87%
×4story building
+66ft-88ft

Overall

24698

Males

14509

M18-39

14509

25K→30K

15.5 - 18.6 mi

Top 90%
×9story building
+181ft-148ft

Overall

25684

Males

14840

M18-39

14840

30K→20M

18.6 - 20.0 mi

Top 92%
×5story building
+64ft-50ft

Overall

26222

Males

15027

M18-39

15027

20M→21M

20.0 - 21.0 mi

Top 89%
×8story building
+106ft-24ft

Overall

25274

Males

14504

M18-39

14504

21M→35K

21.0 - 21.8 mi

Top 91%
×7story building
+17ft-86ft

Overall

25780

Males

14721

M18-39

14721

35K→23M

21.8 - 23.0 mi

Top 94%
×5story building
+23ft-63ft

Overall

26573

Males

15119

M18-39

15119

23M→24M

23.0 - 24.0 mi

Top 91%
×6story building
+12ft-82ft

Overall

25814

Males

14707

M18-39

14707

24M→40K

24.0 - 24.9 mi

Top 94%
×1story
+6ft-20ft

Overall

26599

Males

15085

M18-39

15085

40K→25.2M

24.9 - 25.2 mi

Top 93%
×1story
+13ft-16ft

Overall

26301

Males

14892

M18-39

14892

25.2M→Finish

25.2 - 26.2 mi

Top 90%
×2story building
+22ft-21ft

Overall

25705

Males

14637

M18-39

14637

Passing Analysis

Category:
Athletes Passed
1275
Passed By
985
Net Change
+290
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#25935
5K → 10K32788+239#25935#25696
10K → 15K24841+207#25696#25489
15K → 20K24831+217#25489#25272
20K → Half1625-9#25272#25281
Half → 25K16141+120#25281#25161
25K → 30K85214-129#25161#25290
30K → 20M29124-95#25290#25385
20M → 21M4259-17#25385#25402
21M → 35K2035-15#25402#25417
35K → 23M18111-93#25417#25510
23M → 24M2860-32#25510#25542
24M → 40K1597-82#25542#25624
40K → 25.2M827-19#25624#25643
25.2M → Finish3032-2#25643#25645
TOTALS1275985+290
📊

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