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BOSTON MARATHON 2025

Zachary Stambaugh

Bib: 8294•M

FL

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

Start
0:00:00
Race begins
5K· 3.11 mi
31:29
Rank: #25915
Start → 5K
31:29 | 10:08/mi
10K· 6.21 mi
1:03:54
Rank: #26069 (-154)
5K → 10K
32:25 | 10:26/mi
15K· 9.32 mi
1:37:58
Rank: #26300 (-231)
10K → 15K
34:04 | 10:58/mi
20K· 12.43 mi
2:15:06
Rank: #26595 (-295)
15K → 20K
37:08 | 11:57/mi
Half· 13.11 mi
2:22:48
Rank: #26610 (-15)
20K → Half
7:42 | 11:17/mi
25K· 15.53 mi
2:57:21
Rank: #27027 (-417)
Half → 25K
34:33 | 14:15/mi
30K· 18.64 mi
3:47:23
Rank: #27485 (-458)
25K → 30K
50:02 | 16:06/mi
20M
4:09:16
Rank: #27580 (-95)
30K → 20M
21:53 | 16:06/mi
21M
4:28:48
Rank: #27747 (-167)
20M → 21M
19:32 | 19:32/mi
35K· 21.75 mi
4:40:05
Rank: #27791 (-44)
21M → 35K
11:17 | 15:05/mi
23M
5:00:13
Rank: #27868 (-77)
35K → 23M
20:08 | 16:05/mi
24M
5:14:53
Rank: #27893 (-25)
23M → 24M
14:40 | 14:40/mi
40K· 24.85 mi
5:29:17
Rank: #27956 (-63)
24M → 40K
14:24 | 16:51/mi
25.2M
5:35:39
Rank: #27987 (-31)
40K → 25.2M
6:22 | 18:28/mi
Finish· 26.22 mi
5:50:42
Rank: #28023 (-36)
25.2M → Finish
15:03 | 14:46/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:22:48
Pace10:54 /mi
2nd Half
Distance13.11 mi
Time3:27:54
Pace15:52 /mi
📊Positive Split: 45.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:57:4831:2910:0831:29
10:08
-
10K
6.21 mi11:30:131:03:5410:1732:25
10:26
+0:18
15K
9.32 mi12:04:171:37:5810:3134:04
10:58
+0:32
20K
12.43 mi12:41:252:15:0610:5237:08
11:57
+0:59
Half
13.11 mi12:49:072:22:4810:547:42
11:17
-0:40
25K
15.53 mi13:23:402:57:2111:2534:33
14:15
+2:58
30K
18.64 mi14:13:423:47:2312:1250:02
16:06
+1:51
20M
20.00 mi14:35:354:09:1612:2821:53
16:06
0:00
21M
21.00 mi14:55:074:28:4812:4819:32
19:32
+3:26
35K
21.75 mi15:06:244:40:0512:5311:17
15:05
-4:27
23M
23.00 mi15:26:325:00:1313:0320:08
16:05
+1:00
24M
24.00 mi15:41:125:14:5313:0714:40
14:40
-1:25
40K
24.85 mi15:55:365:29:1713:1514:24
16:51
+2:11
25.2M
25.20 mi16:01:585:35:3913:196:22
18:28
+1:37
Finish
26.22 mi16:17:015:50:4213:2315:03
14:46
-3:42

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

10:08 /mi

Average Pace

13:23 /mi

Slowest Pace

19:32 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:22:48

41% of race

Time at Steady Pace

2:47:36

48% of race

Time at Slower Pace

40:18

11% of race

Average Pace: 13:23 /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 mi10:57:4831:2910:0831:29
10:08
#25915
10K
6.21 mi11:30:131:03:5410:1732:25
10:26
#26069
15K
9.32 mi12:04:171:37:5810:3134:04
10:58
#26300
20K
12.43 mi12:41:252:15:0610:5237:08
11:57
#26595
Half
13.11 mi12:49:072:22:4810:547:42
11:17
#26610
25K
15.53 mi13:23:402:57:2111:2534:33
14:15
#27027
30K
18.64 mi14:13:423:47:2312:1250:02
16:06
#27485
20M
20.00 mi14:35:354:09:1612:2821:53
16:06
#27580
21M
21.00 mi14:55:074:28:4812:4819:32
19:32
#27747
35K
21.75 mi15:06:244:40:0512:5311:17
15:05
#27791
23M
23.00 mi15:26:325:00:1313:0320:08
16:05
#27868
24M
24.00 mi15:41:125:14:5313:0714:40
14:40
#27893
40K
24.85 mi15:55:365:29:1713:1514:24
16:51
#27956
25.2M
25.20 mi16:01:585:35:3913:196:22
18:28
#27987
Finish
26.22 mi16:17:015:50:4213:2315:03
14:46
#28023
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi25915151351513526634(Top 94%)15416(Top 96%)15416(Top 273%)
10K6.21 mi3.10 mi26069-15415194-5915194-5926157(Top 92%)15210(Top 94%)15210(Top 270%)
15K9.32 mi3.11 mi26300-23115289-9515289-9526634(Top 94%)15416(Top 96%)15416(Top 273%)
20K12.43 mi3.11 mi26595-29515406-11715406-11727070(Top 95%)15569(Top 97%)15569(Top 276%)
Half13.11 mi0.68 mi26610-1515412-615412-626864(Top 95%)15464(Top 96%)15464(Top 274%)
25K15.53 mi2.42 mi27027-41715563-15115563-15128002(Top 99%)15918(Top 99%)15918(Top 282%)
30K18.64 mi3.11 mi27485-45815725-16215725-16228278(Top 100%)16031(Top 100%)16031(Top 284%)
20M20.00 mi1.36 mi27580-9515752-2715752-2728187(Top 99%)15974(Top 99%)15974(Top 283%)
21M21.00 mi1.00 mi27747-16715824-7215824-7228363(Top 100%)16081(Top 100%)16081(Top 285%)
35K21.75 mi0.75 mi27791-4415841-1715841-1728086(Top 99%)15904(Top 99%)15904(Top 282%)
23M23.00 mi1.25 mi27868-7715865-2415865-2428156(Top 99%)15938(Top 99%)15938(Top 282%)
24M24.00 mi1.00 mi27893-2515868-315868-327944(Top 98%)15798(Top 98%)15798(Top 280%)
40K24.85 mi0.85 mi27956-6315901-3315901-3328224(Top 99%)15977(Top 99%)15977(Top 283%)
25.2M25.20 mi0.35 mi27987-3115911-1015911-1028270(Top 100%)16008(Top 99%)16008(Top 284%)
Finish26.22 mi1.02 mi28023-3615921-1015921-1028210(Top 99%)15975(Top 99%)15975(Top 283%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 94%
×21stories
+97ft-345ft

Overall

26634

Males

15416

M18-39

15416

5K→10K

3.1 - 6.2 mi

Top 92%
×5stories
+79ft-138ft

Overall

26157

Males

15210

M18-39

15210

10K→15K

6.2 - 9.3 mi

Top 94%
×3stories
+67ft-78ft

Overall

26634

Males

15416

M18-39

15416

15K→20K

9.3 - 12.4 mi

Top 95%
×5stories
+106ft-86ft

Overall

27070

Males

15569

M18-39

15569

20K→Half

12.4 - 13.1 mi

Top 95%
×2stories
+19ft-37ft

Overall

26864

Males

15464

M18-39

15464

Half→25K

13.1 - 15.5 mi

Top 99%
×4stories
+66ft-88ft

Overall

28002

Males

15918

M18-39

15918

25K→30K

15.5 - 18.6 mi

Top 100%
×9stories
+181ft-148ft

Overall

28278

Males

16031

M18-39

16031

30K→20M

18.6 - 20.0 mi

Top 99%
×5stories
+64ft-50ft

Overall

28187

Males

15974

M18-39

15974

20M→21M

20.0 - 21.0 mi

Top 100%
×8stories
+106ft-24ft

Overall

28363

Males

16081

M18-39

16081

21M→35K

21.0 - 21.8 mi

Top 99%
×7stories
+17ft-86ft

Overall

28086

Males

15904

M18-39

15904

35K→23M

21.8 - 23.0 mi

Top 99%
×5stories
+23ft-63ft

Overall

28156

Males

15938

M18-39

15938

23M→24M

23.0 - 24.0 mi

Top 98%
×6stories
+12ft-82ft

Overall

27944

Males

15798

M18-39

15798

24M→40K

24.0 - 24.9 mi

Top 99%
×1story
+6ft-20ft

Overall

28224

Males

15977

M18-39

15977

40K→25.2M

24.9 - 25.2 mi

Top 100%
×1story
+13ft-16ft

Overall

28270

Males

16008

M18-39

16008

25.2M→Finish

25.2 - 26.2 mi

Top 99%
×2stories
+22ft-21ft

Overall

28210

Males

15975

M18-39

15975

Passing Analysis

Category:
Athletes Passed
289
Passed By
2397
Net Change
-2108
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#25915
5K → 10K117271-154#25915#26069
10K → 15K66297-231#26069#26300
15K → 20K44339-295#26300#26595
20K → Half1025-15#26595#26610
Half → 25K10427-417#26610#27027
25K → 30K9467-458#27027#27485
30K → 20M15110-95#27485#27580
20M → 21M1168-167#27580#27747
21M → 35K246-44#27747#27791
35K → 23M178-77#27791#27868
23M → 24M934-25#27868#27893
24M → 40K164-63#27893#27956
40K → 25.2M031-31#27956#27987
25.2M → Finish440-36#27987#28023
TOTALS2892397-2108
📊

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