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BOSTON MARATHON 2025

Zachary Hall

Bib: 28521•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

Start
0:00:00
Race begins
5K· 3.11 mi
30:11
Rank: #24875
Start → 5K
9:43/mi
30:11 split
10K· 6.21 mi
1:00:04
Rank: #24651 (+224)
5K → 10K
9:37/mi
29:53 split
15K· 9.32 mi
1:29:51
Rank: #24413 (+238)
10K → 15K
9:35/mi
29:47 split
20K· 12.43 mi
1:59:23
Rank: #24038 (+375)
15K → 20K
9:30/mi
29:32 split
Half· 13.11 mi
2:05:51
Rank: #24005 (+33)
20K → Half
9:29/mi
6:28 split
25K· 15.53 mi
2:30:01
Rank: #23869 (+136)
Half → 25K
9:58/mi
24:10 split
30K· 18.64 mi
3:01:54
Rank: #23554 (+315)
25K → 30K
10:16/mi
31:53 split
20M
3:16:18
Rank: #23477 (+77)
30K → 20M
10:36/mi
14:24 split
21M
3:27:20
Rank: #23344 (+133)
20M → 21M
11:02/mi
11:02 split
35K· 21.75 mi
3:35:00
Rank: #23325 (+19)
21M → 35K
10:15/mi
7:40 split
23M
3:48:06
Rank: #23249 (+76)
35K → 23M
10:28/mi
13:06 split
24M
3:58:22
Rank: #23186 (+63)
23M → 24M
10:16/mi
10:16 split
40K· 24.85 mi
4:07:13
Rank: #23119 (+67)
24M → 40K
10:21/mi
8:51 split
25.2M
4:11:00
Rank: #23086 (+33)
40K → 25.2M
10:58/mi
3:47 split
Finish· 26.22 mi
4:20:16
Rank: #22988 (+98)
25.2M → Finish
9:06/mi
9:16 split

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:05:51
Pace9:36 /mi
2nd Half
Distance13.11 mi
Time2:14:25
Pace10:15 /mi
📊Positive Split: 6.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:54:3630:119:4330:11
9:43
-
10K
6.21 mi12:24:291:00:049:4029:53
9:37
-0:06
15K
9.32 mi12:54:161:29:519:3829:47
9:35
-0:02
20K
12.43 mi13:23:481:59:239:3629:32
9:30
-0:05
Half
13.11 mi13:30:162:05:519:366:28
9:29
-0:01
25K
15.53 mi13:54:262:30:019:3924:10
9:58
+0:29
30K
18.64 mi14:26:193:01:549:4531:53
10:16
+0:18
20M
20.00 mi14:40:433:16:189:4914:24
10:36
+0:20
21M
21.00 mi14:51:453:27:209:5211:02
11:02
+0:26
35K
21.75 mi14:59:253:35:009:537:40
10:15
-0:47
23M
23.00 mi15:12:313:48:069:5513:06
10:28
+0:13
24M
24.00 mi15:22:473:58:229:5610:16
10:16
-0:12
40K
24.85 mi15:31:384:07:139:578:51
10:21
+0:05
25.2M
25.20 mi15:35:254:11:009:583:47
10:58
+0:37
Finish
26.22 mi15:44:414:20:169:569:16
9:06
-1:52

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

9:06 /mi

Average Pace

9:56 /mi

Slowest Pace

11:02 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:39:17

61% of race

Time at Steady Pace

1:11:46

28% of race

Time at Slower Pace

29:13

11% of race

Average Pace: 9:56 /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 mi11:54:3630:119:4330:11
9:43
#24875
10K
6.21 mi12:24:291:00:049:4029:53
9:37
#24651
15K
9.32 mi12:54:161:29:519:3829:47
9:35
#24413
20K
12.43 mi13:23:481:59:239:3629:32
9:30
#24038
Half
13.11 mi13:30:162:05:519:366:28
9:29
#24005
25K
15.53 mi13:54:262:30:019:3924:10
9:58
#23869
30K
18.64 mi14:26:193:01:549:4531:53
10:16
#23554
20M
20.00 mi14:40:433:16:189:4914:24
10:36
#23477
21M
21.00 mi14:51:453:27:209:5211:02
11:02
#23344
35K
21.75 mi14:59:253:35:009:537:40
10:15
#23325
23M
23.00 mi15:12:313:48:069:5513:06
10:28
#23249
24M
24.00 mi15:22:473:58:229:5610:16
10:16
#23186
40K
24.85 mi15:31:384:07:139:578:51
10:21
#23119
25.2M
25.20 mi15:35:254:11:009:583:47
10:58
#23086
Finish
26.22 mi15:44:414:20:169:569:16
9:06
#22988
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi24875146641466423970(Top 84%)14257(Top 89%)14257(Top 253%)
10K6.21 mi3.10 mi24651+22414552+11214552+11224405(Top 86%)14424(Top 90%)14424(Top 256%)
15K9.32 mi3.11 mi24413+23814437+11514437+11523970(Top 84%)14257(Top 89%)14257(Top 253%)
20K12.43 mi3.11 mi24038+37514262+17514262+17522922(Top 81%)13756(Top 85%)13756(Top 244%)
Half13.11 mi0.68 mi24005+3314243+1914243+1923487(Top 83%)13996(Top 87%)13996(Top 248%)
25K15.53 mi2.42 mi23869+13614181+6214181+6223165(Top 82%)13818(Top 86%)13818(Top 245%)
30K18.64 mi3.11 mi23554+31514009+17214009+17222345(Top 79%)13319(Top 83%)13319(Top 236%)
20M20.00 mi1.36 mi23477+7713958+5113958+5122681(Top 80%)13381(Top 83%)13381(Top 237%)
21M21.00 mi1.00 mi23344+13313869+8913869+8921489(Top 76%)12736(Top 79%)12736(Top 226%)
35K21.75 mi0.75 mi23325+1913849+2013849+2022541(Top 79%)13180(Top 82%)13180(Top 234%)
23M23.00 mi1.25 mi23249+7613787+6213787+6221922(Top 77%)12843(Top 80%)12843(Top 228%)
24M24.00 mi1.00 mi23186+6313735+5213735+5222128(Top 78%)12873(Top 80%)12873(Top 228%)
40K24.85 mi0.85 mi23119+6713687+4813687+4821528(Top 76%)12532(Top 78%)12532(Top 222%)
25.2M25.20 mi0.35 mi23086+3313668+1913668+1920525(Top 72%)12058(Top 75%)12058(Top 214%)
Finish26.22 mi1.02 mi22988+9813615+5313615+5319494(Top 69%)11587(Top 72%)11587(Top 205%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 84%
×21story building
+97ft-345ft

Overall

23970

Males

14257

M18-39

14257

5K→10K

3.1 - 6.2 mi

Top 86%
×5story building
+79ft-138ft

Overall

24405

Males

14424

M18-39

14424

10K→15K

6.2 - 9.3 mi

Top 84%
×3story building
+67ft-78ft

Overall

23970

Males

14257

M18-39

14257

15K→20K

9.3 - 12.4 mi

Top 81%
×5story building
+106ft-86ft

Overall

22922

Males

13756

M18-39

13756

20K→Half

12.4 - 13.1 mi

Top 83%
×2story building
+19ft-37ft

Overall

23487

Males

13996

M18-39

13996

Half→25K

13.1 - 15.5 mi

Top 82%
×4story building
+66ft-88ft

Overall

23165

Males

13818

M18-39

13818

25K→30K

15.5 - 18.6 mi

Top 79%
×9story building
+181ft-148ft

Overall

22345

Males

13319

M18-39

13319

30K→20M

18.6 - 20.0 mi

Top 80%
×5story building
+64ft-50ft

Overall

22681

Males

13381

M18-39

13381

20M→21M

20.0 - 21.0 mi

Top 76%
×8story building
+106ft-24ft

Overall

21489

Males

12736

M18-39

12736

21M→35K

21.0 - 21.8 mi

Top 79%
×7story building
+17ft-86ft

Overall

22541

Males

13180

M18-39

13180

35K→23M

21.8 - 23.0 mi

Top 77%
×5story building
+23ft-63ft

Overall

21922

Males

12843

M18-39

12843

23M→24M

23.0 - 24.0 mi

Top 78%
×6story building
+12ft-82ft

Overall

22128

Males

12873

M18-39

12873

24M→40K

24.0 - 24.9 mi

Top 76%
×1story
+6ft-20ft

Overall

21528

Males

12532

M18-39

12532

40K→25.2M

24.9 - 25.2 mi

Top 72%
×1story
+13ft-16ft

Overall

20525

Males

12058

M18-39

12058

25.2M→Finish

25.2 - 26.2 mi

Top 69%
×2story building
+22ft-21ft

Overall

19494

Males

11587

M18-39

11587

Passing Analysis

Category:
Athletes Passed
2282
Passed By
395
Net Change
+1887
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#24875
5K → 10K333109+224#24875#24651
10K → 15K27335+238#24651#24413
15K → 20K38611+375#24413#24038
20K → Half4613+33#24038#24005
Half → 25K18751+136#24005#23869
25K → 30K34328+315#23869#23554
30K → 20M10932+77#23554#23477
20M → 21M15219+133#23477#23344
21M → 35K5233+19#23344#23325
35K → 23M10428+76#23325#23249
23M → 24M8219+63#23249#23186
24M → 40K8114+67#23186#23119
40K → 25.2M352+33#23119#23086
25.2M → Finish991+98#23086#22988
TOTALS2282395+1887
📊

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