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BOSTON MARATHON 2023

William Leith

Bib: 2864•M

CA

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 20%
Gender (Male)
#0 / 15176
Top 32%
Division (M18-39)
#0 / 5285
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
21:13
Rank: #4949
Start → 5K
21:13 | 6:50/mi
10K· 6.21 mi
42:15
Rank: #4958 (-9)
5K → 10K
21:02 | 6:46/mi
15K· 9.32 mi
1:03:12
Rank: #4812 (+146)
10K → 15K
20:57 | 6:45/mi
20K· 12.43 mi
1:24:18
Rank: #4678 (+134)
15K → 20K
21:06 | 6:47/mi
Half· 13.11 mi
1:28:52
Rank: #4642 (+36)
20K → Half
4:34 | 6:42/mi
25K· 15.53 mi
1:45:16
Rank: #4470 (+172)
Half → 25K
16:24 | 6:46/mi
30K· 18.64 mi
2:07:31
Rank: #4680 (-210)
25K → 30K
22:15 | 7:10/mi
20M
2:17:21
Rank: #4742 (-62)
30K → 20M
9:50 | 7:14/mi
21M
2:25:19
Rank: #4882 (-140)
20M → 21M
7:58 | 7:58/mi
35K· 21.75 mi
2:30:43
Rank: #4945 (-63)
21M → 35K
5:24 | 7:13/mi
23M
2:39:58
Rank: #4949 (-4)
35K → 23M
9:15 | 7:23/mi
24M
2:47:31
Rank: #5038 (-89)
23M → 24M
7:33 | 7:33/mi
40K· 24.85 mi
2:54:09
Rank: #5084 (-46)
24M → 40K
6:38 | 7:45/mi
25.2M
2:57:03
Rank: #5118 (-34)
40K → 25.2M
2:54 | 8:25/mi
Finish· 26.22 mi
3:04:56
Rank: #5244 (-126)
25.2M → Finish
7:53 | 7:44/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:28:52
Pace6:47 /mi
2nd Half
Distance13.11 mi
Time1:36:04
Pace7:20 /mi
📊Positive Split: 8.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:22:2121:136:5021:13
6:50
-
10K
6.21 mi10:43:2342:156:4821:02
6:46
-0:04
15K
9.32 mi11:04:201:03:126:4720:57
6:45
-0:01
20K
12.43 mi11:25:261:24:186:4721:06
6:47
+0:02
Half
13.11 mi11:30:001:28:526:474:34
6:42
-0:05
25K
15.53 mi11:46:241:45:166:4716:24
6:46
+0:04
30K
18.64 mi12:08:392:07:316:5022:15
7:10
+0:24
20M
20.00 mi12:18:292:17:216:529:50
7:14
+0:04
21M
21.00 mi12:26:272:25:196:557:58
7:58
+0:44
35K
21.75 mi12:31:512:30:436:565:24
7:13
-0:45
23M
23.00 mi12:41:062:39:586:579:15
7:23
+0:10
24M
24.00 mi12:48:392:47:316:597:33
7:33
+0:10
40K
24.85 mi12:55:172:54:097:006:38
7:45
+0:12
25.2M
25.20 mi12:58:112:57:037:022:54
8:25
+0:40
Finish
26.22 mi13:06:043:04:567:047:53
7:44
-0:41

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

6:42 /mi

Average Pace

7:04 /mi

Slowest Pace

8:25 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:45:16

57% of race

Time at Steady Pace

46:44

25% of race

Time at Slower Pace

32:56

18% of race

Average Pace: 7:03 /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 mi10:22:2121:136:5021:13
6:50
#4949
10K
6.21 mi10:43:2342:156:4821:02
6:46
#4958
15K
9.32 mi11:04:201:03:126:4720:57
6:45
#4812
20K
12.43 mi11:25:261:24:186:4721:06
6:47
#4678
Half
13.11 mi11:30:001:28:526:474:34
6:42
#4642
25K
15.53 mi11:46:241:45:166:4716:24
6:46
#4470
30K
18.64 mi12:08:392:07:316:5022:15
7:10
#4680
20M
20.00 mi12:18:292:17:216:529:50
7:14
#4742
21M
21.00 mi12:26:272:25:196:557:58
7:58
#4882
35K
21.75 mi12:31:512:30:436:565:24
7:13
#4945
23M
23.00 mi12:41:062:39:586:579:15
7:23
#4949
24M
24.00 mi12:48:392:47:316:597:33
7:33
#5038
40K
24.85 mi12:55:172:54:097:006:38
7:45
#5084
25.2M
25.20 mi12:58:112:57:037:022:54
8:25
#5118
Finish
26.22 mi13:06:043:04:567:047:53
7:44
#5244
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi4949459545954552(Top 17%)4251(Top 28%)4251(Top 80%)
10K6.21 mi3.10 mi4958-94600-54600-54992(Top 19%)4624(Top 30%)4624(Top 87%)
15K9.32 mi3.11 mi4812+1464476+1244476+1244552(Top 17%)4251(Top 28%)4251(Top 80%)
20K12.43 mi3.11 mi4678+1344365+1114365+1114373(Top 16%)4083(Top 27%)4083(Top 77%)
Half13.11 mi0.68 mi4642+364330+354330+354332(Top 16%)4056(Top 27%)4056(Top 77%)
25K15.53 mi2.42 mi4470+1724182+1484182+1483863(Top 15%)3635(Top 24%)3635(Top 69%)
30K18.64 mi3.11 mi4680-2104364-1824364-1825270(Top 20%)4813(Top 32%)4813(Top 91%)
20M20.00 mi1.36 mi4742-624416-524416-525289(Top 20%)4764(Top 31%)4764(Top 90%)
21M21.00 mi1.00 mi4882-1404535-1194535-1197095(Top 27%)5911(Top 39%)5911(Top 112%)
35K21.75 mi0.75 mi4945-634579-444579-446577(Top 25%)5614(Top 37%)5614(Top 106%)
23M23.00 mi1.25 mi4949-44577+24577+25775(Top 22%)5025(Top 33%)5025(Top 95%)
24M24.00 mi1.00 mi5038-894633-564633-567990(Top 30%)6298(Top 41%)6298(Top 119%)
40K24.85 mi0.85 mi5084-464676-434676-438325(Top 31%)6431(Top 42%)6431(Top 122%)
25.2M25.20 mi0.35 mi5118-344699-234699-238846(Top 33%)6619(Top 44%)6619(Top 125%)
Finish26.22 mi1.02 mi5244-1264795-964795-9610172(Top 38%)7372(Top 49%)7372(Top 139%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 17%
×21stories
+97ft-345ft

Overall

4552

Males

4251

M18-39

4251

5K→10K

3.1 - 6.2 mi

Top 19%
×5stories
+79ft-138ft

Overall

4992

Males

4624

M18-39

4624

10K→15K

6.2 - 9.3 mi

Top 17%
×3stories
+67ft-78ft

Overall

4552

Males

4251

M18-39

4251

15K→20K

9.3 - 12.4 mi

Top 16%
×5stories
+106ft-86ft

Overall

4373

Males

4083

M18-39

4083

20K→Half

12.4 - 13.1 mi

Top 16%
×2stories
+19ft-37ft

Overall

4332

Males

4056

M18-39

4056

Half→25K

13.1 - 15.5 mi

Top 15%
×4stories
+66ft-88ft

Overall

3863

Males

3635

M18-39

3635

25K→30K

15.5 - 18.6 mi

Top 20%
×9stories
+181ft-148ft

Overall

5270

Males

4813

M18-39

4813

30K→20M

18.6 - 20.0 mi

Top 20%
×5stories
+64ft-50ft

Overall

5289

Males

4764

M18-39

4764

20M→21M

20.0 - 21.0 mi

Top 27%
×8stories
+106ft-24ft

Overall

7095

Males

5911

M18-39

5911

21M→35K

21.0 - 21.8 mi

Top 25%
×7stories
+17ft-86ft

Overall

6577

Males

5614

M18-39

5614

35K→23M

21.8 - 23.0 mi

Top 22%
×5stories
+23ft-63ft

Overall

5775

Males

5025

M18-39

5025

23M→24M

23.0 - 24.0 mi

Top 30%
×6stories
+12ft-82ft

Overall

7990

Males

6298

M18-39

6298

24M→40K

24.0 - 24.9 mi

Top 31%
×1story
+6ft-20ft

Overall

8325

Males

6431

M18-39

6431

40K→25.2M

24.9 - 25.2 mi

Top 33%
×1story
+13ft-16ft

Overall

8846

Males

6619

M18-39

6619

25.2M→Finish

25.2 - 26.2 mi

Top 38%
×2stories
+22ft-21ft

Overall

10172

Males

7372

M18-39

7372

Passing Analysis

Category:
Athletes Passed
1110
Passed By
1405
Net Change
-295
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#4949
5K → 10K189198-9#4949#4958
10K → 15K19751+146#4958#4812
15K → 20K17642+134#4812#4678
20K → Half415+36#4678#4642
Half → 25K19119+172#4642#4470
25K → 30K72282-210#4470#4680
30K → 20M50112-62#4680#4742
20M → 21M21161-140#4742#4882
21M → 35K2184-63#4882#4945
35K → 23M7478-4#4945#4949
23M → 24M24113-89#4949#5038
24M → 40K2975-46#5038#5084
40K → 25.2M1044-34#5084#5118
25.2M → Finish15141-126#5118#5244
TOTALS11101405-295
📊

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