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BOSTON MARATHON 2025

Kevin Kaspzyk

Bib: 16714•M

MI

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

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
8:51/mi
27:31
↑ 97↓ 3451.5%
10K· 6.21 mi
8:46/mi
54:46
↑ 79↓ 1380.4%
15K· 9.32 mi
8:44/mi
1:21:55
↑ 67↓ 78
20K· 12.43 mi
8:24/mi
1:48:01
↑ 106↓ 860.1%
Half· 13.11 mi
8:23/mi
1:53:44
↑ 19↓ 370.5%
25K· 15.53 mi
8:43/mi
2:14:51
↑ 66↓ 880.2%
30K· 18.64 mi
10:12/mi
2:46:33
↑ 181↓ 1480.2%
20M
9:51/mi
2:59:56
↑ 64↓ 500.2%
21M
10:41/mi
3:10:37
↑ 106↓ 241.6%
35K· 21.75 mi
9:16/mi
3:17:33
↑ 17↓ 861.7%
23M
10:05/mi
3:30:10
↑ 23↓ 630.6%
24M
9:48/mi
3:39:58
↓ 821.3%
40K· 24.85 mi
11:25/mi
3:49:44
↓ 200.3%
25.2M
13:38/mi
3:54:26
↑ 13↓ 160.2%
Finish· 26.22 mi
10:29/mi
4:05:07
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:53:44
Pace8:41 /mi
2nd Half
Distance13.11 mi
Time2:11:23
Pace10:01 /mi
📊Positive Split: 15.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:00:4027:318:5127:31
8:51
-
10K
6.21 mi11:27:5554:468:4927:15
8:46
-0:05
15K
9.32 mi11:55:041:21:558:4727:09
8:44
-0:02
20K
12.43 mi12:21:101:48:018:4226:06
8:24
-0:20
Half
13.11 mi12:26:531:53:448:415:43
8:23
-0:01
25K
15.53 mi12:48:002:14:518:4121:07
8:43
+0:20
30K
18.64 mi13:19:422:46:338:5631:42
10:12
+1:29
20M
20.00 mi13:33:052:59:569:0013:23
9:51
-0:21
21M
21.00 mi13:43:463:10:379:0510:41
10:41
+0:50
35K
21.75 mi13:50:423:17:339:056:56
9:16
-1:25
23M
23.00 mi14:03:193:30:109:0812:37
10:05
+0:49
24M
24.00 mi14:13:073:39:589:109:48
9:48
-0:17
40K
24.85 mi14:22:533:49:449:159:46
11:25
+1:37
25.2M
25.20 mi14:27:353:54:269:184:42
13:38
+2:13
Finish
26.22 mi14:38:164:05:079:2110:41
10:29
-3:09

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

8:23 /mi

Average Pace

9:21 /mi

Slowest Pace

13:38 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:14:51

55% of race

Time at Steady Pace

1:14:26

30% of race

Time at Slower Pace

35:50

15% of race

Average Pace: 9:21 /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 mi11:00:4027:318:5127:31
8:51
#21789
10K
6.21 mi11:27:5554:468:4927:15
8:46
#21518
15K
9.32 mi11:55:041:21:558:4727:09
8:44
#21193
20K
12.43 mi12:21:101:48:018:4226:06
8:24
#20362
Half
13.11 mi12:26:531:53:448:415:43
8:23
#20271
25K
15.53 mi12:48:002:14:518:4121:07
8:43
#19940
30K
18.64 mi13:19:422:46:338:5631:42
10:12
#20545
20M
20.00 mi13:33:052:59:569:0013:23
9:51
#20535
21M
21.00 mi13:43:463:10:379:0510:41
10:41
#20547
35K
21.75 mi13:50:423:17:339:056:56
9:16
#20516
23M
23.00 mi14:03:193:30:109:0812:37
10:05
#20542
24M
24.00 mi14:13:073:39:589:109:48
9:48
#20573
40K
24.85 mi14:22:533:49:449:159:46
11:25
#20792
25.2M
25.20 mi14:27:353:54:269:184:42
13:38
#20910
Finish
26.22 mi14:38:164:05:079:2110:41
10:29
#21067
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
5K3.11 mi3.11 mi21789132201322020680(Top 73%)12804(Top 80%)12804(Top 641%)
10K6.21 mi3.10 mi21518+27113108+11213108+11221247(Top 75%)13016(Top 81%)13016(Top 652%)
15K9.32 mi3.11 mi21193+32512990+11812990+11820680(Top 73%)12804(Top 80%)12804(Top 641%)
20K12.43 mi3.11 mi20362+83112624+36612624+36617554(Top 62%)11428(Top 71%)11428(Top 573%)
Half13.11 mi0.68 mi20271+9112579+4512579+4518463(Top 65%)11825(Top 73%)11825(Top 592%)
25K15.53 mi2.42 mi19940+33112437+14212437+14218448(Top 65%)11724(Top 73%)11724(Top 587%)
30K18.64 mi3.11 mi20545-60512654-21712654-21722188(Top 78%)13260(Top 82%)13260(Top 664%)
20M20.00 mi1.36 mi20535+1012632+2212632+2220438(Top 72%)12341(Top 77%)12341(Top 618%)
21M21.00 mi1.00 mi20547-1212615+1712615+1720553(Top 72%)12284(Top 76%)12284(Top 615%)
35K21.75 mi0.75 mi20516+3112589+2612589+2619447(Top 68%)11714(Top 73%)11714(Top 587%)
23M23.00 mi1.25 mi20542-2612577+1212577+1220727(Top 73%)12260(Top 76%)12260(Top 614%)
24M24.00 mi1.00 mi20573-3112573+412573+420715(Top 73%)12209(Top 76%)12209(Top 612%)
40K24.85 mi0.85 mi20792-21912654-8112654-8123990(Top 84%)13767(Top 85%)13767(Top 690%)
25.2M25.20 mi0.35 mi20910-11812697-4312697-4325829(Top 91%)14654(Top 91%)14654(Top 734%)
Finish26.22 mi1.02 mi21067-15712748-5112748-5124233(Top 85%)13887(Top 86%)13887(Top 696%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 73%
×21story building
+97ft-345ft

Overall

20680

Males

12804

M50-54

12804

5K→10K

3.1 - 6.2 mi

Top 75%
×5story building
+79ft-138ft

Overall

21247

Males

13016

M50-54

13016

10K→15K

6.2 - 9.3 mi

Top 73%
×3story building
+67ft-78ft

Overall

20680

Males

12804

M50-54

12804

15K→20K

9.3 - 12.4 mi

Top 62%
×5story building
+106ft-86ft

Overall

17554

Males

11428

M50-54

11428

20K→Half

12.4 - 13.1 mi

Top 65%
×2story building
+19ft-37ft

Overall

18463

Males

11825

M50-54

11825

Half→25K

13.1 - 15.5 mi

Top 65%
×4story building
+66ft-88ft

Overall

18448

Males

11724

M50-54

11724

25K→30K

15.5 - 18.6 mi

Top 78%
×9story building
+181ft-148ft

Overall

22188

Males

13260

M50-54

13260

30K→20M

18.6 - 20.0 mi

Top 72%
×5story building
+64ft-50ft

Overall

20438

Males

12341

M50-54

12341

20M→21M

20.0 - 21.0 mi

Top 72%
×8story building
+106ft-24ft

Overall

20553

Males

12284

M50-54

12284

21M→35K

21.0 - 21.8 mi

Top 68%
×7story building
+17ft-86ft

Overall

19447

Males

11714

M50-54

11714

35K→23M

21.8 - 23.0 mi

Top 73%
×5story building
+23ft-63ft

Overall

20727

Males

12260

M50-54

12260

23M→24M

23.0 - 24.0 mi

Top 73%
×6story building
+12ft-82ft

Overall

20715

Males

12209

M50-54

12209

24M→40K

24.0 - 24.9 mi

Top 84%
×1story
+6ft-20ft

Overall

23990

Males

13767

M50-54

13767

40K→25.2M

24.9 - 25.2 mi

Top 91%
×1story
+13ft-16ft

Overall

25829

Males

14654

M50-54

14654

25.2M→Finish

25.2 - 26.2 mi

Top 85%
×2story building
+22ft-21ft

Overall

24233

Males

13887

M50-54

13887

Passing Analysis

Category:
Athletes Passed
2622
Passed By
1900
Net Change
+722
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#21789
5K → 10K428157+271#21789#21518
10K → 15K40075+325#21518#21193
15K → 20K8321+831#21193#20362
20K → Half998+91#20362#20271
Half → 25K35625+331#20271#19940
25K → 30K90695-605#19940#20545
30K → 20M10797+10#20545#20535
20M → 21M8698-12#20535#20547
21M → 35K6332+31#20547#20516
35K → 23M83109-26#20516#20542
23M → 24M4576-31#20542#20573
24M → 40K13232-219#20573#20792
40K → 25.2M9127-118#20792#20910
25.2M → Finish11168-157#20910#21067
TOTALS26221900+722
📊

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