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BOSTON MARATHON 2023

Harrison Thomas

Bib: 2100•M

IL

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 1%
Gender (Male)
#0 / 15176
Top 2%
Division (M18-39)
#0 / 5285
Top 5%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
16:39
Rank: #69
Start → 5K
16:39 | 5:22/mi
10K· 6.21 mi
33:44
Rank: #97 (-28)
5K → 10K
17:05 | 5:30/mi
15K· 9.32 mi
50:53
Rank: #104 (-7)
10K → 15K
17:09 | 5:31/mi
20K· 12.43 mi
1:08:10
Rank: #105 (-1)
15K → 20K
17:17 | 5:34/mi
Half· 13.11 mi
1:11:51
Rank: #105
20K → Half
3:41 | 5:24/mi
25K· 15.53 mi
1:25:13
Rank: #101 (+4)
Half → 25K
13:22 | 5:31/mi
30K· 18.64 mi
1:43:02
Rank: #102 (-1)
25K → 30K
17:49 | 5:44/mi
20M
1:51:00
Rank: #110 (-8)
30K → 20M
7:58 | 5:52/mi
21M
1:57:30
Rank: #116 (-6)
20M → 21M
6:30 | 6:30/mi
35K· 21.75 mi
2:02:06
Rank: #124 (-8)
21M → 35K
4:36 | 6:09/mi
23M
2:10:29
Rank: #137 (-13)
35K → 23M
8:23 | 6:42/mi
24M
2:17:37
Rank: #171 (-34)
23M → 24M
7:08 | 7:08/mi
40K· 24.85 mi
2:24:42
Rank: #242 (-71)
24M → 40K
7:05 | 8:17/mi
25.2M
2:27:49
Rank: #277 (-35)
40K → 25.2M
3:07 | 9:02/mi
Finish· 26.22 mi
2:35:30
Rank: #357 (-80)
25.2M → Finish
7:41 | 7:32/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:11:51
Pace5:29 /mi
2nd Half
Distance13.11 mi
Time1:23:39
Pace6:23 /mi
📊Positive Split: 16.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:17:0816:395:2216:39
5:22
-
10K
6.21 mi10:34:1333:445:2617:05
5:30
+0:08
15K
9.32 mi10:51:2250:535:2817:09
5:31
+0:01
20K
12.43 mi11:08:391:08:105:2917:17
5:34
+0:03
Half
13.11 mi11:12:201:11:515:293:41
5:24
-0:10
25K
15.53 mi11:25:421:25:135:2913:22
5:31
+0:07
30K
18.64 mi11:43:311:43:025:3217:49
5:44
+0:13
20M
20.00 mi11:51:291:51:005:337:58
5:52
+0:08
21M
21.00 mi11:57:591:57:305:366:30
6:30
+0:38
35K
21.75 mi12:02:352:02:065:374:36
6:09
-0:21
23M
23.00 mi12:10:582:10:295:408:23
6:42
+0:33
24M
24.00 mi12:18:062:17:375:447:08
7:08
+0:26
40K
24.85 mi12:25:112:24:425:497:05
8:17
+1:09
25.2M
25.20 mi12:28:182:27:495:523:07
9:02
+0:45
Finish
26.22 mi12:35:592:35:305:567:41
7:32
-1:30

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

5:22 /mi

Average Pace

5:56 /mi

Slowest Pace

9:02 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

0:00

0% of race

Time at Steady Pace

1:55:36

74% of race

Time at Slower Pace

39:54

26% of race

Average Pace: 5:56 /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 mi10:17:0816:395:2216:39
5:22
#69
10K
6.21 mi10:34:1333:445:2617:05
5:30
#97
15K
9.32 mi10:51:2250:535:2817:09
5:31
#104
20K
12.43 mi11:08:391:08:105:2917:17
5:34
#105
Half
13.11 mi11:12:201:11:515:293:41
5:24
#105
25K
15.53 mi11:25:421:25:135:2913:22
5:31
#101
30K
18.64 mi11:43:311:43:025:3217:49
5:44
#102
20M
20.00 mi11:51:291:51:005:337:58
5:52
#110
21M
21.00 mi11:57:591:57:305:366:30
6:30
#116
35K
21.75 mi12:02:352:02:065:374:36
6:09
#124
23M
23.00 mi12:10:582:10:295:408:23
6:42
#137
24M
24.00 mi12:18:062:17:375:447:08
7:08
#171
40K
24.85 mi12:25:112:24:425:497:05
8:17
#242
25.2M
25.20 mi12:28:182:27:495:523:07
9:02
#277
Finish
26.22 mi12:35:592:35:305:567:41
7:32
#357
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi696969121(Top 0.5%)97(Top 0.6%)97(Top 2%)
10K6.21 mi3.10 mi97-2897-2897-28150(Top 0.6%)124(Top 0.8%)124(Top 2%)
15K9.32 mi3.11 mi104-796+196+1121(Top 0.5%)97(Top 0.6%)97(Top 2%)
20K12.43 mi3.11 mi105-194+294+2121(Top 0.5%)103(Top 0.7%)103(Top 2%)
Half13.11 mi0.68 mi105949479(Top 0.3%)79(Top 0.5%)79(Top 1%)
25K15.53 mi2.42 mi101+485+985+987(Top 0.3%)70(Top 0.5%)70(Top 1%)
30K18.64 mi3.11 mi102-186-186-1124(Top 0.5%)105(Top 0.7%)105(Top 2%)
20M20.00 mi1.36 mi110-892-692-6220(Top 0.8%)198(Top 1%)198(Top 4%)
21M21.00 mi1.00 mi116-698-698-6636(Top 2%)598(Top 4%)598(Top 11%)
35K21.75 mi0.75 mi124-8106-8106-81047(Top 4%)995(Top 7%)995(Top 19%)
23M23.00 mi1.25 mi137-13117-11117-112138(Top 8%)2018(Top 13%)2018(Top 38%)
24M24.00 mi1.00 mi171-34149-32149-325329(Top 20%)4654(Top 31%)4654(Top 88%)
40K24.85 mi0.85 mi242-71217-68217-6811863(Top 45%)8242(Top 54%)8242(Top 156%)
25.2M25.20 mi0.35 mi277-35249-32249-3212620(Top 47%)8533(Top 56%)8533(Top 161%)
Finish26.22 mi1.02 mi357-80325-76325-768784(Top 33%)6612(Top 44%)6612(Top 125%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 0.5%
×21stories
+97ft-345ft

Overall

121

Males

97

M18-39

97

5K→10K

3.1 - 6.2 mi

Top 0.6%
×5stories
+79ft-138ft

Overall

150

Males

124

M18-39

124

10K→15K

6.2 - 9.3 mi

Top 0.5%
×3stories
+67ft-78ft

Overall

121

Males

97

M18-39

97

15K→20K

9.3 - 12.4 mi

Top 0.5%
×5stories
+106ft-86ft

Overall

121

Males

103

M18-39

103

20K→Half

12.4 - 13.1 mi

Top 0.3%
×2stories
+19ft-37ft

Overall

79

Males

79

M18-39

79

Half→25K

13.1 - 15.5 mi

Top 0.3%
×4stories
+66ft-88ft

Overall

87

Males

70

M18-39

70

25K→30K

15.5 - 18.6 mi

Top 0.5%
×9stories
+181ft-148ft

Overall

124

Males

105

M18-39

105

30K→20M

18.6 - 20.0 mi

Top 0.8%
×5stories
+64ft-50ft

Overall

220

Males

198

M18-39

198

20M→21M

20.0 - 21.0 mi

Top 2%
×8stories
+106ft-24ft

Overall

636

Males

598

M18-39

598

21M→35K

21.0 - 21.8 mi

Top 4%
×7stories
+17ft-86ft

Overall

1047

Males

995

M18-39

995

35K→23M

21.8 - 23.0 mi

Top 8%
×5stories
+23ft-63ft

Overall

2138

Males

2018

M18-39

2018

23M→24M

23.0 - 24.0 mi

Top 20%
×6stories
+12ft-82ft

Overall

5329

Males

4654

M18-39

4654

24M→40K

24.0 - 24.9 mi

Top 45%
×1story
+6ft-20ft

Overall

11863

Males

8242

M18-39

8242

40K→25.2M

24.9 - 25.2 mi

Top 47%
×1story
+13ft-16ft

Overall

12620

Males

8533

M18-39

8533

25.2M→Finish

25.2 - 26.2 mi

Top 33%
×2stories
+22ft-21ft

Overall

8784

Males

6612

M18-39

6612

Passing Analysis

Category:
Athletes Passed
23
Passed By
311
Net Change
-288
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#69
5K → 10K028-28#69#97
10K → 15K411-7#97#104
15K → 20K23-1#104#105
20K → Half000#105#105
Half → 25K95+4#105#101
25K → 30K23-1#101#102
30K → 20M08-8#102#110
20M → 21M17-6#110#116
21M → 35K08-8#116#124
35K → 23M316-13#124#137
23M → 24M135-34#137#171
24M → 40K172-71#171#242
40K → 25.2M035-35#242#277
25.2M → Finish080-80#277#357
TOTALS23311-288
📊

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