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BOSTON MARATHON 2023

Tj Sherwin

Bib: 7570•M

NY

0:00
0:00
/ mi
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Overall
#0 / 26622
Gender (Male)
#0 / 15176
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
24:52
Rank: #14046
Start → 5K
24:52 | 8:00/mi
10K· 6.21 mi
51:19
Rank: #16223 (-2177)
5K → 10K
26:27 | 8:31/mi
15K· 9.32 mi
1:19:27
Rank: #17990 (-1767)
10K → 15K
28:08 | 9:03/mi
20K· 12.43 mi
1:48:06
Rank: #18775 (-785)
15K → 20K
28:39 | 9:13/mi
Half· 13.11 mi
1:53:49
Rank: #18704 (+71)
20K → Half
5:43 | 8:23/mi
25K· 15.53 mi
2:16:09
Rank: #18917 (-213)
Half → 25K
22:20 | 9:13/mi
30K· 18.64 mi
2:47:32
Rank: #19536 (-619)
25K → 30K
31:23 | 10:06/mi
20M
3:02:25
Rank: #19905 (-369)
30K → 20M
14:53 | 10:57/mi
21M
3:13:05
Rank: #19921 (-16)
20M → 21M
10:40 | 10:40/mi
35K· 21.75 mi
3:20:35
Rank: #19993 (-72)
21M → 35K
7:30 | 10:01/mi
23M
3:34:03
Rank: #20151 (-158)
35K → 23M
13:28 | 10:45/mi
24M
3:44:22
Rank: #20240 (-89)
23M → 24M
10:19 | 10:19/mi
40K· 24.85 mi
3:53:22
Rank: #20258 (-18)
24M → 40K
9:00 | 10:32/mi
25.2M
3:57:52
Rank: #20350 (-92)
40K → 25.2M
4:30 | 13:03/mi
Finish· 26.22 mi
4:06:28
Rank: #20213 (+137)
25.2M → Finish
8:36 | 8:26/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:53:49
Pace8:41 /mi
2nd Half
Distance13.11 mi
Time2:12:39
Pace10:07 /mi
📊Positive Split: 16.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:28:5724:528:0024:52
8:00
-
10K
6.21 mi10:55:2451:198:1626:27
8:31
+0:31
15K
9.32 mi11:23:321:19:278:3128:08
9:03
+0:32
20K
12.43 mi11:52:111:48:068:4228:39
9:13
+0:10
Half
13.11 mi11:57:541:53:498:415:43
8:23
-0:50
25K
15.53 mi12:20:142:16:098:4622:20
9:13
+0:50
30K
18.64 mi12:51:372:47:328:5931:23
10:06
+0:53
20M
20.00 mi13:06:303:02:259:0714:53
10:57
+0:51
21M
21.00 mi13:17:103:13:059:1210:40
10:40
-0:17
35K
21.75 mi13:24:403:20:359:137:30
10:01
-0:39
23M
23.00 mi13:38:083:34:039:1813:28
10:45
+0:44
24M
24.00 mi13:48:273:44:229:2110:19
10:19
-0:26
40K
24.85 mi13:57:273:53:229:239:00
10:32
+0:13
25.2M
25.20 mi14:01:573:57:529:264:30
13:03
+2:31
Finish
26.22 mi14:10:334:06:289:248:36
8:26
-4:37

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

8:00 /mi

Average Pace

9:24 /mi

Slowest Pace

13:03 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:24:45

59% of race

Time at Steady Pace

58:12

24% of race

Time at Slower Pace

43:31

18% of race

Average Pace: 9:24 /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 mi10:28:5724:528:0024:52
8:00
#14046
10K
6.21 mi10:55:2451:198:1626:27
8:31
#16223
15K
9.32 mi11:23:321:19:278:3128:08
9:03
#17990
20K
12.43 mi11:52:111:48:068:4228:39
9:13
#18775
Half
13.11 mi11:57:541:53:498:415:43
8:23
#18704
25K
15.53 mi12:20:142:16:098:4622:20
9:13
#18917
30K
18.64 mi12:51:372:47:328:5931:23
10:06
#19536
20M
20.00 mi13:06:303:02:259:0714:53
10:57
#19905
21M
21.00 mi13:17:103:13:059:1210:40
10:40
#19921
35K
21.75 mi13:24:403:20:359:137:30
10:01
#19993
23M
23.00 mi13:38:083:34:039:1813:28
10:45
#20151
24M
24.00 mi13:48:273:44:229:2110:19
10:19
#20240
40K
24.85 mi13:57:273:53:229:239:00
10:32
#20258
25.2M
25.20 mi14:01:573:57:529:264:30
13:03
#20350
Finish
26.22 mi14:10:334:06:289:248:36
8:26
#20213
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi140469971997120751(Top 78%)12635(Top 83%)12635(Top 239%)
10K6.21 mi3.10 mi16223-217710796-82510796-82518335(Top 69%)11638(Top 77%)11638(Top 220%)
15K9.32 mi3.11 mi17990-176711449-65311449-65320751(Top 78%)12635(Top 83%)12635(Top 239%)
20K12.43 mi3.11 mi18775-78511771-32211771-32220651(Top 78%)12599(Top 83%)12599(Top 238%)
Half13.11 mi0.68 mi18704+7111746+2511746+2517001(Top 64%)11099(Top 73%)11099(Top 210%)
25K15.53 mi2.42 mi18917-21311823-7711823-7719890(Top 75%)12236(Top 81%)12236(Top 232%)
30K18.64 mi3.11 mi19536-61912068-24512068-24521288(Top 80%)12756(Top 84%)12756(Top 241%)
20M20.00 mi1.36 mi19905-36912198-13012198-13022616(Top 85%)13281(Top 88%)13281(Top 251%)
21M21.00 mi1.00 mi19921-1612202-412202-420052(Top 75%)12073(Top 80%)12073(Top 228%)
35K21.75 mi0.75 mi19993-7212225-2312225-2321316(Top 80%)12629(Top 83%)12629(Top 239%)
23M23.00 mi1.25 mi20151-15812276-5112276-5121872(Top 82%)12842(Top 85%)12842(Top 243%)
24M24.00 mi1.00 mi20240-8912307-3112307-3121591(Top 81%)12677(Top 84%)12677(Top 240%)
40K24.85 mi0.85 mi20258-1812302+512302+521262(Top 80%)12484(Top 82%)12484(Top 236%)
25.2M25.20 mi0.35 mi20350-9212336-3412336-3424005(Top 90%)13791(Top 91%)13791(Top 261%)
Finish26.22 mi1.02 mi20213+13712269+6712269+6715002(Top 56%)9744(Top 64%)9744(Top 184%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 78%
×21stories
+97ft-345ft

Overall

20751

Males

12635

M18-39

12635

5K→10K

3.1 - 6.2 mi

Top 69%
×5stories
+79ft-138ft

Overall

18335

Males

11638

M18-39

11638

10K→15K

6.2 - 9.3 mi

Top 78%
×3stories
+67ft-78ft

Overall

20751

Males

12635

M18-39

12635

15K→20K

9.3 - 12.4 mi

Top 78%
×5stories
+106ft-86ft

Overall

20651

Males

12599

M18-39

12599

20K→Half

12.4 - 13.1 mi

Top 64%
×2stories
+19ft-37ft

Overall

17001

Males

11099

M18-39

11099

Half→25K

13.1 - 15.5 mi

Top 75%
×4stories
+66ft-88ft

Overall

19890

Males

12236

M18-39

12236

25K→30K

15.5 - 18.6 mi

Top 80%
×9stories
+181ft-148ft

Overall

21288

Males

12756

M18-39

12756

30K→20M

18.6 - 20.0 mi

Top 85%
×5stories
+64ft-50ft

Overall

22616

Males

13281

M18-39

13281

20M→21M

20.0 - 21.0 mi

Top 75%
×8stories
+106ft-24ft

Overall

20052

Males

12073

M18-39

12073

21M→35K

21.0 - 21.8 mi

Top 80%
×7stories
+17ft-86ft

Overall

21316

Males

12629

M18-39

12629

35K→23M

21.8 - 23.0 mi

Top 82%
×5stories
+23ft-63ft

Overall

21872

Males

12842

M18-39

12842

23M→24M

23.0 - 24.0 mi

Top 81%
×6stories
+12ft-82ft

Overall

21591

Males

12677

M18-39

12677

24M→40K

24.0 - 24.9 mi

Top 80%
×1story
+6ft-20ft

Overall

21262

Males

12484

M18-39

12484

40K→25.2M

24.9 - 25.2 mi

Top 90%
×1story
+13ft-16ft

Overall

24005

Males

13791

M18-39

13791

25.2M→Finish

25.2 - 26.2 mi

Top 56%
×2stories
+22ft-21ft

Overall

15002

Males

9744

M18-39

9744

Passing Analysis

Category:
Athletes Passed
617
Passed By
6784
Net Change
-6167
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#14046
5K → 10K92186-2177#14046#16223
10K → 15K91776-1767#16223#17990
15K → 20K40825-785#17990#18775
20K → Half776+71#18775#18704
Half → 25K71284-213#18704#18917
25K → 30K40659-619#18917#19536
30K → 20M29398-369#19536#19905
20M → 21M7793-16#19905#19921
21M → 35K29101-72#19921#19993
35K → 23M38196-158#19993#20151
23M → 24M22111-89#20151#20240
24M → 40K3452-18#20240#20258
40K → 25.2M597-92#20258#20350
25.2M → Finish1370+137#20350#20213
TOTALS6176784-6167
📊

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