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BOSTON MARATHON 2023

Henry Su

Bib: 21761•M

CA

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Male)
#0 / 15176
Masters (Masters Men)
#0 / 9891
Division (M60-64)
#0 / 1110
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
27:36
Rank: #19900
Start → 5K
8:53/mi
27:36 split
10K· 6.21 mi
54:47
Rank: #19767 (+133)
5K → 10K
8:45/mi
27:11 split
15K· 9.32 mi
1:22:27
Rank: #19841 (-74)
10K → 15K
8:54/mi
27:40 split
20K· 12.43 mi
1:51:10
Rank: #20087 (-246)
15K → 20K
9:15/mi
28:43 split
Half· 13.11 mi
1:57:45
Rank: #20281 (-194)
20K → Half
9:39/mi
6:35 split
25K· 15.53 mi
2:20:23
Rank: #20302 (-21)
Half → 25K
9:20/mi
22:38 split
30K· 18.64 mi
2:53:02
Rank: #20765 (-463)
25K → 30K
10:31/mi
32:39 split
20M
3:08:15
Rank: #21007 (-242)
30K → 20M
11:12/mi
15:13 split
21M
3:20:35
Rank: #21200 (-193)
20M → 21M
12:20/mi
12:20 split
35K· 21.75 mi
3:28:42
Rank: #21286 (-86)
21M → 35K
10:51/mi
8:07 split
23M
3:44:20
Rank: #21615 (-329)
35K → 23M
12:29/mi
15:38 split
24M
3:55:28
Rank: #21717 (-102)
23M → 24M
11:08/mi
11:08 split
40K· 24.85 mi
4:05:18
Rank: #21784 (-67)
24M → 40K
11:30/mi
9:50 split
25.2M
4:09:33
Rank: #21808 (-24)
40K → 25.2M
12:19/mi
4:15 split
Finish· 26.22 mi
4:21:36
Rank: #21979 (-171)
25.2M → Finish
11:49/mi
12:03 split

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:57:45
Pace8:59 /mi
2nd Half
Distance13.11 mi
Time2:23:51
Pace10:58 /mi
📊Positive Split: 22.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:20:5827:368:5327:36
8:53
-
10K
6.21 mi11:48:0954:478:4927:11
8:45
-0:08
15K
9.32 mi12:15:491:22:278:5127:40
8:54
+0:09
20K
12.43 mi12:44:321:51:108:5728:43
9:15
+0:21
Half
13.11 mi12:51:071:57:458:596:35
9:39
+0:24
25K
15.53 mi13:13:452:20:239:0222:38
9:20
-0:19
30K
18.64 mi13:46:242:53:029:1732:39
10:31
+1:11
20M
20.00 mi14:01:373:08:159:2515:13
11:12
+0:41
21M
21.00 mi14:13:573:20:359:3312:20
12:20
+1:08
35K
21.75 mi14:22:043:28:429:368:07
10:51
-1:29
23M
23.00 mi14:37:423:44:209:4515:38
12:29
+1:38
24M
24.00 mi14:48:503:55:289:4911:08
11:08
-1:21
40K
24.85 mi14:58:404:05:189:529:50
11:30
+0:22
25.2M
25.20 mi15:02:554:09:339:544:15
12:19
+0:49
Finish
26.22 mi15:14:584:21:369:5912:03
11:49
-0:30

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

8:45 /mi

Average Pace

9:59 /mi

Slowest Pace

12:29 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:20:23

54% of race

Time at Steady Pace

1:16:57

29% of race

Time at Slower Pace

44:16

17% of race

Average Pace: 9:59 /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 mi11:20:5827:368:5327:36
8:53
#19900
10K
6.21 mi11:48:0954:478:4927:11
8:45
#19767
15K
9.32 mi12:15:491:22:278:5127:40
8:54
#19841
20K
12.43 mi12:44:321:51:108:5728:43
9:15
#20087
Half
13.11 mi12:51:071:57:458:596:35
9:39
#20281
25K
15.53 mi13:13:452:20:239:0222:38
9:20
#20302
30K
18.64 mi13:46:242:53:029:1732:39
10:31
#20765
20M
20.00 mi14:01:373:08:159:2515:13
11:12
#21007
21M
21.00 mi14:13:573:20:359:3312:20
12:20
#21200
35K
21.75 mi14:22:043:28:429:368:07
10:51
#21286
23M
23.00 mi14:37:423:44:209:4515:38
12:29
#21615
24M
24.00 mi14:48:503:55:289:4911:08
11:08
#21717
40K
24.85 mi14:58:404:05:189:529:50
11:30
#21784
25.2M
25.20 mi15:02:554:09:339:544:15
12:19
#21808
Finish
26.22 mi15:14:584:21:369:5912:03
11:49
#21979
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM60-64Seg. OverallSeg. MalesSeg. M60-64
5K3.11 mi3.11 mi19900121371213720065(Top 75%)12330(Top 81%)12330(Top 1111%)
10K6.21 mi3.10 mi19767+13312115+2212115+2219675(Top 74%)12162(Top 80%)12162(Top 1096%)
15K9.32 mi3.11 mi19841-7412176-6112176-6120065(Top 75%)12330(Top 81%)12330(Top 1111%)
20K12.43 mi3.11 mi20087-24612301-12512301-12520742(Top 78%)12639(Top 83%)12639(Top 1139%)
Half13.11 mi0.68 mi20281-19412389-8812389-8822500(Top 85%)13398(Top 88%)13398(Top 1207%)
25K15.53 mi2.42 mi20302-2112410-2112410-2120300(Top 76%)12418(Top 82%)12418(Top 1119%)
30K18.64 mi3.11 mi20765-46312605-19512605-19522226(Top 83%)13174(Top 87%)13174(Top 1187%)
20M20.00 mi1.36 mi21007-24212688-8312688-8323007(Top 86%)13467(Top 89%)13467(Top 1213%)
21M21.00 mi1.00 mi21200-19312755-6712755-6723237(Top 87%)13540(Top 89%)13540(Top 1220%)
35K21.75 mi0.75 mi21286-8612791-3612791-3623008(Top 86%)13389(Top 88%)13389(Top 1206%)
23M23.00 mi1.25 mi21615-32912928-13712928-13724567(Top 92%)14119(Top 93%)14119(Top 1272%)
24M24.00 mi1.00 mi21717-10212960-3212960-3223288(Top 87%)13474(Top 89%)13474(Top 1214%)
40K24.85 mi0.85 mi21784-6712982-2212982-2223197(Top 87%)13409(Top 88%)13409(Top 1208%)
25.2M25.20 mi0.35 mi21808-2412992-1012992-1022995(Top 86%)13316(Top 88%)13316(Top 1200%)
Finish26.22 mi1.02 mi21979-17113064-7213064-7225062(Top 94%)14340(Top 94%)14340(Top 1292%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 75%
×21story building
+97ft-345ft

Overall

20065

Males

12330

M60-64

12330

5K→10K

3.1 - 6.2 mi

Top 74%
×5story building
+79ft-138ft

Overall

19675

Males

12162

M60-64

12162

10K→15K

6.2 - 9.3 mi

Top 75%
×3story building
+67ft-78ft

Overall

20065

Males

12330

M60-64

12330

15K→20K

9.3 - 12.4 mi

Top 78%
×5story building
+106ft-86ft

Overall

20742

Males

12639

M60-64

12639

20K→Half

12.4 - 13.1 mi

Top 85%
×2story building
+19ft-37ft

Overall

22500

Males

13398

M60-64

13398

Half→25K

13.1 - 15.5 mi

Top 76%
×4story building
+66ft-88ft

Overall

20300

Males

12418

M60-64

12418

25K→30K

15.5 - 18.6 mi

Top 83%
×9story building
+181ft-148ft

Overall

22226

Males

13174

M60-64

13174

30K→20M

18.6 - 20.0 mi

Top 86%
×5story building
+64ft-50ft

Overall

23007

Males

13467

M60-64

13467

20M→21M

20.0 - 21.0 mi

Top 87%
×8story building
+106ft-24ft

Overall

23237

Males

13540

M60-64

13540

21M→35K

21.0 - 21.8 mi

Top 86%
×7story building
+17ft-86ft

Overall

23008

Males

13389

M60-64

13389

35K→23M

21.8 - 23.0 mi

Top 92%
×5story building
+23ft-63ft

Overall

24567

Males

14119

M60-64

14119

23M→24M

23.0 - 24.0 mi

Top 87%
×6story building
+12ft-82ft

Overall

23288

Males

13474

M60-64

13474

24M→40K

24.0 - 24.9 mi

Top 87%
×1story
+6ft-20ft

Overall

23197

Males

13409

M60-64

13409

40K→25.2M

24.9 - 25.2 mi

Top 86%
×1story
+13ft-16ft

Overall

22995

Males

13316

M60-64

13316

25.2M→Finish

25.2 - 26.2 mi

Top 94%
×2story building
+22ft-21ft

Overall

25062

Males

14340

M60-64

14340

Passing Analysis

Category:
Athletes Passed
905
Passed By
2984
Net Change
-2079
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#19900
5K → 10K373240+133#19900#19767
10K → 15K145219-74#19767#19841
15K → 20K107353-246#19841#20087
20K → Half3197-194#20087#20281
Half → 25K114135-21#20281#20302
25K → 30K42505-463#20302#20765
30K → 20M26268-242#20765#21007
20M → 21M14207-193#21007#21200
21M → 35K1399-86#21200#21286
35K → 23M15344-329#21286#21615
23M → 24M15117-102#21615#21717
24M → 40K1986-67#21717#21784
40K → 25.2M1034-24#21784#21808
25.2M → Finish9180-171#21808#21979
TOTALS9052984-2079
📊

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