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BOSTON MARATHON 2025

Zachary Lythgoe

Bib: 3954•M

AZ

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
32:00
Rank: #26297
Start → 5K
32:00 | 10:18/mi
10K· 6.21 mi
1:03:11
Rank: #25847 (+450)
5K → 10K
31:11 | 10:02/mi
15K· 9.32 mi
1:32:13
Rank: #25036 (+811)
10K → 15K
29:02 | 9:21/mi
20K· 12.43 mi
2:03:08
Rank: #24781 (+255)
15K → 20K
30:55 | 9:57/mi
Half· 13.11 mi
2:09:24
Rank: #24679 (+102)
20K → Half
6:16 | 9:11/mi
25K· 15.53 mi
2:33:23
Rank: #24441 (+238)
Half → 25K
23:59 | 9:54/mi
30K· 18.64 mi
3:04:46
Rank: #23997 (+444)
25K → 30K
31:23 | 10:06/mi
20M
3:18:09
Rank: #23753 (+244)
30K → 20M
13:23 | 9:51/mi
21M
3:28:23
Rank: #23507 (+246)
20M → 21M
10:14 | 10:14/mi
35K· 21.75 mi
3:35:48
Rank: #23412 (+95)
21M → 35K
7:25 | 9:55/mi
23M
3:49:53
Rank: #23455 (-43)
35K → 23M
14:05 | 11:15/mi
24M
4:00:18
Rank: #23421 (+34)
23M → 24M
10:25 | 10:25/mi
40K· 24.85 mi
4:09:53
Rank: #23406 (+15)
24M → 40K
9:35 | 11:13/mi
25.2M
4:13:41
Rank: #23367 (+39)
40K → 25.2M
3:48 | 11:01/mi
Finish· 26.22 mi
4:23:04
Rank: #23275 (+92)
25.2M → Finish
9:23 | 9:12/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:09:24
Pace9:52 /mi
2nd Half
Distance13.11 mi
Time2:13:40
Pace10:12 /mi
📊Positive Split: 3.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:40:0332:0010:1832:00
10:18
-
10K
6.21 mi11:11:141:03:1110:1031:11
10:02
-0:16
15K
9.32 mi11:40:161:32:139:5429:02
9:21
-0:41
20K
12.43 mi12:11:112:03:089:5430:55
9:57
+0:36
Half
13.11 mi12:17:272:09:249:526:16
9:11
-0:46
25K
15.53 mi12:41:262:33:239:5223:59
9:54
+0:43
30K
18.64 mi13:12:493:04:469:5531:23
10:06
+0:12
20M
20.00 mi13:26:123:18:099:5413:23
9:51
-0:15
21M
21.00 mi13:36:263:28:239:5510:14
10:14
+0:23
35K
21.75 mi13:43:513:35:489:557:25
9:55
-0:19
23M
23.00 mi13:57:563:49:5310:0014:05
11:15
+1:20
24M
24.00 mi14:08:214:00:1810:0110:25
10:25
-0:50
40K
24.85 mi14:17:564:09:5310:039:35
11:13
+0:48
25.2M
25.20 mi14:21:444:13:4110:043:48
11:01
-0:12
Finish
26.22 mi14:31:074:23:0410:029:23
9:12
-1:49

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

9:11 /mi

Average Pace

10:02 /mi

Slowest Pace

11:15 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

44:41

17% of race

Time at Steady Pace

3:00:30

69% of race

Time at Slower Pace

37:53

14% of race

Average Pace: 10:02 /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 mi10:40:0332:0010:1832:00
10:18
#26297
10K
6.21 mi11:11:141:03:1110:1031:11
10:02
#25847
15K
9.32 mi11:40:161:32:139:5429:02
9:21
#25036
20K
12.43 mi12:11:112:03:089:5430:55
9:57
#24781
Half
13.11 mi12:17:272:09:249:526:16
9:11
#24679
25K
15.53 mi12:41:262:33:239:5223:59
9:54
#24441
30K
18.64 mi13:12:493:04:469:5531:23
10:06
#23997
20M
20.00 mi13:26:123:18:099:5413:23
9:51
#23753
21M
21.00 mi13:36:263:28:239:5510:14
10:14
#23507
35K
21.75 mi13:43:513:35:489:557:25
9:55
#23412
23M
23.00 mi13:57:563:49:5310:0014:05
11:15
#23455
24M
24.00 mi14:08:214:00:1810:0110:25
10:25
#23421
40K
24.85 mi14:17:564:09:5310:039:35
11:13
#23406
25.2M
25.20 mi14:21:444:13:4110:043:48
11:01
#23367
Finish
26.22 mi14:31:074:23:0410:029:23
9:12
#23275
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi26297153071530723331(Top 82%)13990(Top 87%)13990(Top 248%)
10K6.21 mi3.10 mi25847+45015100+20715100+20725393(Top 89%)14874(Top 92%)14874(Top 264%)
15K9.32 mi3.11 mi25036+81114728+37214728+37223331(Top 82%)13990(Top 87%)13990(Top 248%)
20K12.43 mi3.11 mi24781+25514606+12214606+12224124(Top 85%)14282(Top 89%)14282(Top 253%)
Half13.11 mi0.68 mi24679+10214555+5114555+5122527(Top 79%)13573(Top 84%)13573(Top 241%)
25K15.53 mi2.42 mi24441+23814430+12514430+12522987(Top 81%)13740(Top 85%)13740(Top 244%)
30K18.64 mi3.11 mi23997+44414209+22114209+22121908(Top 77%)13121(Top 81%)13121(Top 233%)
20M20.00 mi1.36 mi23753+24414071+13814071+13820444(Top 72%)12347(Top 77%)12347(Top 219%)
21M21.00 mi1.00 mi23507+24613944+12713944+12719136(Top 67%)11692(Top 73%)11692(Top 207%)
35K21.75 mi0.75 mi23412+9513888+5613888+5621656(Top 76%)12751(Top 79%)12751(Top 226%)
23M23.00 mi1.25 mi23455-4313887+113887+123766(Top 84%)13716(Top 85%)13716(Top 243%)
24M24.00 mi1.00 mi23421+3413863+2413863+2422570(Top 79%)13096(Top 81%)13096(Top 232%)
40K24.85 mi0.85 mi23406+1513837+2613837+2623580(Top 83%)13546(Top 84%)13546(Top 240%)
25.2M25.20 mi0.35 mi23367+3913806+3113806+3120705(Top 73%)12152(Top 75%)12152(Top 215%)
Finish26.22 mi1.02 mi23275+9213750+5613750+5619979(Top 70%)11800(Top 73%)11800(Top 209%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 82%
×21stories
+97ft-345ft

Overall

23331

Males

13990

M18-39

13990

5K→10K

3.1 - 6.2 mi

Top 89%
×5stories
+79ft-138ft

Overall

25393

Males

14874

M18-39

14874

10K→15K

6.2 - 9.3 mi

Top 82%
×3stories
+67ft-78ft

Overall

23331

Males

13990

M18-39

13990

15K→20K

9.3 - 12.4 mi

Top 85%
×5stories
+106ft-86ft

Overall

24124

Males

14282

M18-39

14282

20K→Half

12.4 - 13.1 mi

Top 79%
×2stories
+19ft-37ft

Overall

22527

Males

13573

M18-39

13573

Half→25K

13.1 - 15.5 mi

Top 81%
×4stories
+66ft-88ft

Overall

22987

Males

13740

M18-39

13740

25K→30K

15.5 - 18.6 mi

Top 77%
×9stories
+181ft-148ft

Overall

21908

Males

13121

M18-39

13121

30K→20M

18.6 - 20.0 mi

Top 72%
×5stories
+64ft-50ft

Overall

20444

Males

12347

M18-39

12347

20M→21M

20.0 - 21.0 mi

Top 67%
×8stories
+106ft-24ft

Overall

19136

Males

11692

M18-39

11692

21M→35K

21.0 - 21.8 mi

Top 76%
×7stories
+17ft-86ft

Overall

21656

Males

12751

M18-39

12751

35K→23M

21.8 - 23.0 mi

Top 84%
×5stories
+23ft-63ft

Overall

23766

Males

13716

M18-39

13716

23M→24M

23.0 - 24.0 mi

Top 79%
×6stories
+12ft-82ft

Overall

22570

Males

13096

M18-39

13096

24M→40K

24.0 - 24.9 mi

Top 83%
×1story
+6ft-20ft

Overall

23580

Males

13546

M18-39

13546

40K→25.2M

24.9 - 25.2 mi

Top 73%
×1story
+13ft-16ft

Overall

20705

Males

12152

M18-39

12152

25.2M→Finish

25.2 - 26.2 mi

Top 70%
×2stories
+22ft-21ft

Overall

19979

Males

11800

M18-39

11800

Passing Analysis

Category:
Athletes Passed
3313
Passed By
291
Net Change
+3022
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#26297
5K → 10K47929+450#26297#25847
10K → 15K8110+811#25847#25036
15K → 20K29742+255#25036#24781
20K → Half1042+102#24781#24679
Half → 25K25315+238#24679#24441
25K → 30K45612+444#24441#23997
30K → 20M2462+244#23997#23753
20M → 21M2460+246#23753#23507
21M → 35K10510+95#23507#23412
35K → 23M5295-43#23412#23455
23M → 24M5016+34#23455#23421
24M → 40K6146+15#23421#23406
40K → 25.2M5011+39#23406#23367
25.2M → Finish10311+92#23367#23275
TOTALS3313291+3022
📊

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