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BOSTON MARATHON 2023

Zachary Gould

Bib: 873•M

PA

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 3%
Gender (Male)
#0 / 15176
Top 4%
Division (M18-39)
#0 / 5285
Top 11%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
18:20
Rank: #533
Start → 5K
18:20 | 5:54/mi
10K· 6.21 mi
36:44
Rank: #576 (-43)
5K → 10K
18:24 | 5:55/mi
15K· 9.32 mi
55:31
Rank: #638 (-62)
10K → 15K
18:47 | 6:03/mi
20K· 12.43 mi
1:14:30
Rank: #658 (-20)
15K → 20K
18:59 | 6:07/mi
Half· 13.11 mi
1:18:32
Rank: #652 (+6)
20K → Half
4:02 | 5:55/mi
25K· 15.53 mi
1:33:31
Rank: #685 (-33)
Half → 25K
14:59 | 6:11/mi
30K· 18.64 mi
1:53:09
Rank: #712 (-27)
25K → 30K
19:38 | 6:19/mi
20M
2:01:52
Rank: #727 (-15)
30K → 20M
8:43 | 6:25/mi
21M
2:08:28
Rank: #721 (+6)
20M → 21M
6:36 | 6:36/mi
35K· 21.75 mi
2:13:06
Rank: #736 (-15)
21M → 35K
4:38 | 6:12/mi
23M
2:21:01
Rank: #745 (-9)
35K → 23M
7:55 | 6:19/mi
24M
2:27:16
Rank: #739 (+6)
23M → 24M
6:15 | 6:15/mi
40K· 24.85 mi
2:32:39
Rank: #727 (+12)
24M → 40K
5:23 | 6:18/mi
25.2M
2:34:55
Rank: #717 (+10)
40K → 25.2M
2:16 | 6:34/mi
Finish· 26.22 mi
2:40:53
Rank: #696 (+21)
25.2M → Finish
5:58 | 5:51/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:18:32
Pace5:59 /mi
2nd Half
Distance13.11 mi
Time1:22:21
Pace6:17 /mi
📊Positive Split: 4.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:18:2918:205:5418:20
5:54
-
10K
6.21 mi10:36:5336:445:5518:24
5:55
+0:01
15K
9.32 mi10:55:4055:315:5718:47
6:03
+0:08
20K
12.43 mi11:14:391:14:306:0018:59
6:07
+0:04
Half
13.11 mi11:18:411:18:325:594:02
5:55
-0:12
25K
15.53 mi11:33:401:33:316:0114:59
6:11
+0:16
30K
18.64 mi11:53:181:53:096:0419:38
6:19
+0:08
20M
20.00 mi12:02:012:01:526:068:43
6:25
+0:06
21M
21.00 mi12:08:372:08:286:076:36
6:36
+0:11
35K
21.75 mi12:13:152:13:066:074:38
6:12
-0:24
23M
23.00 mi12:21:102:21:016:087:55
6:19
+0:07
24M
24.00 mi12:27:252:27:166:086:15
6:15
-0:04
40K
24.85 mi12:32:482:32:396:085:23
6:18
+0:03
25.2M
25.20 mi12:35:042:34:556:092:16
6:34
+0:16
Finish
26.22 mi12:41:022:40:536:085:58
5:51
-0:43

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

5:51 /mi

Average Pace

6:08 /mi

Slowest Pace

6:36 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:32:01

94% of race

Time at Steady Pace

8:52

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:08 /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 mi10:18:2918:205:5418:20
5:54
#533
10K
6.21 mi10:36:5336:445:5518:24
5:55
#576
15K
9.32 mi10:55:4055:315:5718:47
6:03
#638
20K
12.43 mi11:14:391:14:306:0018:59
6:07
#658
Half
13.11 mi11:18:411:18:325:594:02
5:55
#652
25K
15.53 mi11:33:401:33:316:0114:59
6:11
#685
30K
18.64 mi11:53:181:53:096:0419:38
6:19
#712
20M
20.00 mi12:02:012:01:526:068:43
6:25
#727
21M
21.00 mi12:08:372:08:286:076:36
6:36
#721
35K
21.75 mi12:13:152:13:066:074:38
6:12
#736
23M
23.00 mi12:21:102:21:016:087:55
6:19
#745
24M
24.00 mi12:27:252:27:166:086:15
6:15
#739
40K
24.85 mi12:32:482:32:396:085:23
6:18
#727
25.2M
25.20 mi12:35:042:34:556:092:16
6:34
#717
Finish
26.22 mi12:41:022:40:536:085:58
5:51
#696
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi533491491813(Top 3%)767(Top 5%)767(Top 15%)
10K6.21 mi3.10 mi576-43534-43534-43630(Top 2%)587(Top 4%)587(Top 11%)
15K9.32 mi3.11 mi638-62595-61595-61813(Top 3%)767(Top 5%)767(Top 15%)
20K12.43 mi3.11 mi658-20615-20615-20805(Top 3%)761(Top 5%)761(Top 14%)
Half13.11 mi0.68 mi652+6609+6609+6575(Top 2%)537(Top 4%)537(Top 10%)
25K15.53 mi2.42 mi685-33644-35644-35935(Top 4%)887(Top 6%)887(Top 17%)
30K18.64 mi3.11 mi712-27670-26670-26952(Top 4%)906(Top 6%)906(Top 17%)
20M20.00 mi1.36 mi727-15685-15685-151166(Top 4%)1110(Top 7%)1110(Top 21%)
21M21.00 mi1.00 mi721+6679+6679+6865(Top 3%)819(Top 5%)819(Top 15%)
35K21.75 mi0.75 mi736-15694-15694-151197(Top 4%)1140(Top 8%)1140(Top 22%)
23M23.00 mi1.25 mi745-9702-8702-8878(Top 3%)834(Top 5%)834(Top 16%)
24M24.00 mi1.00 mi739+6696+6696+61165(Top 4%)1102(Top 7%)1102(Top 21%)
40K24.85 mi0.85 mi727+12685+11685+11873(Top 3%)826(Top 5%)826(Top 16%)
25.2M25.20 mi0.35 mi717+10675+10675+10606(Top 2%)573(Top 4%)573(Top 11%)
Finish26.22 mi1.02 mi696+21654+21654+21462(Top 2%)439(Top 3%)439(Top 8%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 3%
×21stories
+97ft-345ft

Overall

813

Males

767

M18-39

767

5K→10K

3.1 - 6.2 mi

Top 2%
×5stories
+79ft-138ft

Overall

630

Males

587

M18-39

587

10K→15K

6.2 - 9.3 mi

Top 3%
×3stories
+67ft-78ft

Overall

813

Males

767

M18-39

767

15K→20K

9.3 - 12.4 mi

Top 3%
×5stories
+106ft-86ft

Overall

805

Males

761

M18-39

761

20K→Half

12.4 - 13.1 mi

Top 2%
×2stories
+19ft-37ft

Overall

575

Males

537

M18-39

537

Half→25K

13.1 - 15.5 mi

Top 4%
×4stories
+66ft-88ft

Overall

935

Males

887

M18-39

887

25K→30K

15.5 - 18.6 mi

Top 4%
×9stories
+181ft-148ft

Overall

952

Males

906

M18-39

906

30K→20M

18.6 - 20.0 mi

Top 4%
×5stories
+64ft-50ft

Overall

1166

Males

1110

M18-39

1110

20M→21M

20.0 - 21.0 mi

Top 3%
×8stories
+106ft-24ft

Overall

865

Males

819

M18-39

819

21M→35K

21.0 - 21.8 mi

Top 4%
×7stories
+17ft-86ft

Overall

1197

Males

1140

M18-39

1140

35K→23M

21.8 - 23.0 mi

Top 3%
×5stories
+23ft-63ft

Overall

878

Males

834

M18-39

834

23M→24M

23.0 - 24.0 mi

Top 4%
×6stories
+12ft-82ft

Overall

1165

Males

1102

M18-39

1102

24M→40K

24.0 - 24.9 mi

Top 3%
×1story
+6ft-20ft

Overall

873

Males

826

M18-39

826

40K→25.2M

24.9 - 25.2 mi

Top 2%
×1story
+13ft-16ft

Overall

606

Males

573

M18-39

573

25.2M→Finish

25.2 - 26.2 mi

Top 2%
×2stories
+22ft-21ft

Overall

462

Males

439

M18-39

439

Passing Analysis

Category:
Athletes Passed
161
Passed By
324
Net Change
-163
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#533
5K → 10K1558-43#533#576
10K → 15K365-62#576#638
15K → 20K929-20#638#658
20K → Half60+6#658#652
Half → 25K1144-33#652#685
25K → 30K1340-27#685#712
30K → 20M823-15#712#727
20M → 21M159+6#727#721
21M → 35K722-15#721#736
35K → 23M918-9#736#745
23M → 24M159+6#745#739
24M → 40K153+12#739#727
40K → 25.2M100+10#727#717
25.2M → Finish254+21#717#696
TOTALS161324-163
📊

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