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BOSTON MARATHON 2023

Si Ho

Bib: 21491•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
26:35
Rank: #17935
Start → 5K
26:35 | 8:33/mi
10K· 6.21 mi
54:04
Rank: #19107 (-1172)
5K → 10K
27:29 | 8:51/mi
15K· 9.32 mi
1:20:26
Rank: #18635 (+472)
10K → 15K
26:22 | 8:29/mi
20K· 12.43 mi
1:47:00
Rank: #18264 (+371)
15K → 20K
26:34 | 8:33/mi
Half· 13.11 mi
1:52:45
Rank: #18214 (+50)
20K → Half
5:45 | 8:26/mi
25K· 15.53 mi
2:13:31
Rank: #17921 (+293)
Half → 25K
20:46 | 8:34/mi
30K· 18.64 mi
2:41:22
Rank: #17696 (+225)
25K → 30K
27:51 | 8:58/mi
20M
2:54:25
Rank: #17846 (-150)
30K → 20M
13:03 | 9:36/mi
21M
3:05:35
Rank: #18206 (-360)
20M → 21M
11:10 | 11:10/mi
35K· 21.75 mi
3:12:29
Rank: #18228 (-22)
21M → 35K
6:54 | 9:13/mi
23M
3:25:06
Rank: #18398 (-170)
35K → 23M
12:37 | 10:05/mi
24M
3:34:44
Rank: #18486 (-88)
23M → 24M
9:38 | 9:38/mi
40K· 24.85 mi
3:44:01
Rank: #18727 (-241)
24M → 40K
9:17 | 10:51/mi
25.2M
3:47:54
Rank: #18782 (-55)
40K → 25.2M
3:53 | 11:16/mi
Finish· 26.22 mi
3:57:48
Rank: #18906 (-124)
25.2M → Finish
9:54 | 9:43/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:52:45
Pace8:36 /mi
2nd Half
Distance13.11 mi
Time2:05:03
Pace9:32 /mi
📊Positive Split: 10.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:19:3426:358:3326:35
8:33
-
10K
6.21 mi11:47:0354:048:4227:29
8:51
+0:18
15K
9.32 mi12:13:251:20:268:3826:22
8:29
-0:22
20K
12.43 mi12:39:591:47:008:3726:34
8:33
+0:04
Half
13.11 mi12:45:441:52:458:365:45
8:26
-0:07
25K
15.53 mi13:06:302:13:318:3620:46
8:34
+0:08
30K
18.64 mi13:34:212:41:228:3927:51
8:58
+0:24
20M
20.00 mi13:47:242:54:258:4313:03
9:36
+0:38
21M
21.00 mi13:58:343:05:358:5011:10
11:10
+1:34
35K
21.75 mi14:05:283:12:298:516:54
9:13
-1:57
23M
23.00 mi14:18:053:25:068:5512:37
10:05
+0:52
24M
24.00 mi14:27:433:34:448:579:38
9:38
-0:27
40K
24.85 mi14:37:003:44:019:019:17
10:51
+1:13
25.2M
25.20 mi14:40:533:47:549:033:53
11:16
+0:25
Finish
26.22 mi14:50:473:57:489:059:54
9:43
-1:33

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

8:26 /mi

Average Pace

9:05 /mi

Slowest Pace

11:16 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:46:02

45% of race

Time at Steady Pace

1:24:55

36% of race

Time at Slower Pace

46:51

20% of race

Average Pace: 9:04 /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 mi11:19:3426:358:3326:35
8:33
#17935
10K
6.21 mi11:47:0354:048:4227:29
8:51
#19107
15K
9.32 mi12:13:251:20:268:3826:22
8:29
#18635
20K
12.43 mi12:39:591:47:008:3726:34
8:33
#18264
Half
13.11 mi12:45:441:52:458:365:45
8:26
#18214
25K
15.53 mi13:06:302:13:318:3620:46
8:34
#17921
30K
18.64 mi13:34:212:41:228:3927:51
8:58
#17696
20M
20.00 mi13:47:242:54:258:4313:03
9:36
#17846
21M
21.00 mi13:58:343:05:358:5011:10
11:10
#18206
35K
21.75 mi14:05:283:12:298:516:54
9:13
#18228
23M
23.00 mi14:18:053:25:068:5512:37
10:05
#18398
24M
24.00 mi14:27:433:34:448:579:38
9:38
#18486
40K
24.85 mi14:37:003:44:019:019:17
10:51
#18727
25.2M
25.20 mi14:40:533:47:549:033:53
11:16
#18782
Finish
26.22 mi14:50:473:57:489:059:54
9:43
#18906
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM60-64Seg. OverallSeg. MalesSeg. M60-64
5K3.11 mi3.11 mi17935114041140417709(Top 67%)11350(Top 75%)11350(Top 1023%)
10K6.21 mi3.10 mi19107-117211866-46211866-46220160(Top 76%)12345(Top 81%)12345(Top 1112%)
15K9.32 mi3.11 mi18635+47211711+15511711+15517709(Top 67%)11350(Top 75%)11350(Top 1023%)
20K12.43 mi3.11 mi18264+37111577+13411577+13417172(Top 65%)11123(Top 73%)11123(Top 1002%)
Half13.11 mi0.68 mi18214+5011551+2611551+2617285(Top 65%)11216(Top 74%)11216(Top 1010%)
25K15.53 mi2.42 mi17921+29311409+14211409+14216585(Top 62%)10801(Top 71%)10801(Top 973%)
30K18.64 mi3.11 mi17696+22511302+10711302+10716978(Top 64%)10907(Top 72%)10907(Top 983%)
20M20.00 mi1.36 mi17846-15011337-3511337-3519223(Top 72%)11788(Top 78%)11788(Top 1062%)
21M21.00 mi1.00 mi18206-36011462-12511462-12521178(Top 80%)12597(Top 83%)12597(Top 1135%)
35K21.75 mi0.75 mi18228-2211467-511467-518821(Top 71%)11508(Top 76%)11508(Top 1037%)
23M23.00 mi1.25 mi18398-17011529-6211529-6220201(Top 76%)12098(Top 80%)12098(Top 1090%)
24M24.00 mi1.00 mi18486-8811567-3811567-3819674(Top 74%)11854(Top 78%)11854(Top 1068%)
40K24.85 mi0.85 mi18727-24111653-8611653-8622039(Top 83%)12845(Top 85%)12845(Top 1157%)
25.2M25.20 mi0.35 mi18782-5511669-1611669-1621014(Top 79%)12387(Top 82%)12387(Top 1116%)
Finish26.22 mi1.02 mi18906-12411730-6111730-6120827(Top 78%)12326(Top 81%)12326(Top 1110%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 67%
×21stories
+97ft-345ft

Overall

17709

Males

11350

M60-64

11350

5K→10K

3.1 - 6.2 mi

Top 76%
×5stories
+79ft-138ft

Overall

20160

Males

12345

M60-64

12345

10K→15K

6.2 - 9.3 mi

Top 67%
×3stories
+67ft-78ft

Overall

17709

Males

11350

M60-64

11350

15K→20K

9.3 - 12.4 mi

Top 65%
×5stories
+106ft-86ft

Overall

17172

Males

11123

M60-64

11123

20K→Half

12.4 - 13.1 mi

Top 65%
×2stories
+19ft-37ft

Overall

17285

Males

11216

M60-64

11216

Half→25K

13.1 - 15.5 mi

Top 62%
×4stories
+66ft-88ft

Overall

16585

Males

10801

M60-64

10801

25K→30K

15.5 - 18.6 mi

Top 64%
×9stories
+181ft-148ft

Overall

16978

Males

10907

M60-64

10907

30K→20M

18.6 - 20.0 mi

Top 72%
×5stories
+64ft-50ft

Overall

19223

Males

11788

M60-64

11788

20M→21M

20.0 - 21.0 mi

Top 80%
×8stories
+106ft-24ft

Overall

21178

Males

12597

M60-64

12597

21M→35K

21.0 - 21.8 mi

Top 71%
×7stories
+17ft-86ft

Overall

18821

Males

11508

M60-64

11508

35K→23M

21.8 - 23.0 mi

Top 76%
×5stories
+23ft-63ft

Overall

20201

Males

12098

M60-64

12098

23M→24M

23.0 - 24.0 mi

Top 74%
×6stories
+12ft-82ft

Overall

19674

Males

11854

M60-64

11854

24M→40K

24.0 - 24.9 mi

Top 83%
×1story
+6ft-20ft

Overall

22039

Males

12845

M60-64

12845

40K→25.2M

24.9 - 25.2 mi

Top 79%
×1story
+13ft-16ft

Overall

21014

Males

12387

M60-64

12387

25.2M→Finish

25.2 - 26.2 mi

Top 78%
×2stories
+22ft-21ft

Overall

20827

Males

12326

M60-64

12326

Passing Analysis

Category:
Athletes Passed
1852
Passed By
2823
Net Change
-971
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#17935
5K → 10K591231-1172#17935#19107
10K → 15K51947+472#19107#18635
15K → 20K40029+371#18635#18264
20K → Half577+50#18264#18214
Half → 25K30815+293#18214#17921
25K → 30K29772+225#17921#17696
30K → 20M51201-150#17696#17846
20M → 21M22382-360#17846#18206
21M → 35K4365-22#18206#18228
35K → 23M35205-170#18228#18398
23M → 24M26114-88#18398#18486
24M → 40K9250-241#18486#18727
40K → 25.2M1368-55#18727#18782
25.2M → Finish13137-124#18782#18906
TOTALS18522823-971
📊

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