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BOSTON MARATHON 2023

Caleb Ho

Bib: 26235•M

MA

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Male)
#0 / 15176
Masters (Masters Men)
#0 / 9891
Division (M50-54)
#0 / 2052
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent
Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
5K· 3.11 mi
11:34/mi
35:57
↑ 97↓ 3451.5%
10K· 6.21 mi
10:54/mi
1:09:49
↑ 79↓ 1380.4%
15K· 9.32 mi
10:50/mi
1:43:29
↑ 67↓ 78
20K· 12.43 mi
11:13/mi
2:18:20
↑ 106↓ 860.1%
Half· 13.11 mi
11:14/mi
2:26:00
↑ 19↓ 370.5%
25K· 15.53 mi
11:51/mi
2:54:43
↑ 66↓ 880.2%
30K· 18.64 mi
12:25/mi
3:33:17
↑ 181↓ 1480.2%
20M
12:26/mi
3:50:11
↑ 64↓ 500.2%
21M
13:05/mi
4:03:16
↑ 106↓ 241.6%
35K· 21.75 mi
12:15/mi
4:12:26
↑ 17↓ 861.7%
23M
11:42/mi
4:27:05
↑ 23↓ 630.6%
24M
11:30/mi
4:38:35
↓ 821.3%
40K· 24.85 mi
11:41/mi
4:48:34
↓ 200.3%
25.2M
12:22/mi
4:52:50
↑ 13↓ 160.2%
Finish· 26.22 mi
10:49/mi
5:03:51
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:26:00
Pace11:08 /mi
2nd Half
Distance13.11 mi
Time2:37:51
Pace12:02 /mi
📊Positive Split: 8.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:52:5035:5711:3435:57
11:34
-
10K
6.21 mi12:26:421:09:4911:1433:52
10:54
-0:40
15K
9.32 mi13:00:221:43:2911:0633:40
10:50
-0:04
20K
12.43 mi13:35:132:18:2011:0834:51
11:13
+0:23
Half
13.11 mi13:42:532:26:0011:087:40
11:14
+0:01
25K
15.53 mi14:11:362:54:4311:1528:43
11:51
+0:37
30K
18.64 mi14:50:103:33:1711:2638:34
12:25
+0:34
20M
20.00 mi15:07:043:50:1111:3116:54
12:26
+0:01
21M
21.00 mi15:20:094:03:1611:3513:05
13:05
+0:39
35K
21.75 mi15:29:194:12:2611:369:10
12:15
-0:50
23M
23.00 mi15:43:584:27:0511:3714:39
11:42
-0:33
24M
24.00 mi15:55:284:38:3511:3611:30
11:30
-0:12
40K
24.85 mi16:05:274:48:3411:379:59
11:41
+0:11
25.2M
25.20 mi16:09:434:52:5011:374:16
12:22
+0:41
Finish
26.22 mi16:20:445:03:5111:3611:01
10:49
-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

10:49 /mi

Average Pace

11:36 /mi

Slowest Pace

13:05 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:01:04

40% of race

Time at Steady Pace

1:40:48

33% of race

Time at Slower Pace

1:21:59

27% of race

Average Pace: 11:35 /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 mi11:52:5035:5711:3435:57
11:34
#26249
10K
6.21 mi12:26:421:09:4911:1433:52
10:54
#25852
15K
9.32 mi13:00:221:43:2911:0633:40
10:50
#25578
20K
12.43 mi13:35:132:18:2011:0834:51
11:13
#25406
Half
13.11 mi13:42:532:26:0011:087:40
11:14
#25392
25K
15.53 mi14:11:362:54:4311:1528:43
11:51
#25319
30K
18.64 mi14:50:103:33:1711:2638:34
12:25
#25265
20M
20.00 mi15:07:043:50:1111:3116:54
12:26
#25243
21M
21.00 mi15:20:094:03:1611:3513:05
13:05
#25182
35K
21.75 mi15:29:194:12:2611:369:10
12:15
#25182
23M
23.00 mi15:43:584:27:0511:3714:39
11:42
#25116
24M
24.00 mi15:55:284:38:3511:3611:30
11:30
#25088
40K
24.85 mi16:05:274:48:3411:379:59
11:41
#25056
25.2M
25.20 mi16:09:434:52:5011:374:16
12:22
#25029
Finish
26.22 mi16:20:445:03:5111:3611:01
10:49
#24991
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
5K3.11 mi3.11 mi26249150291502924983(Top 94%)14511(Top 96%)14511(Top 707%)
10K6.21 mi3.10 mi25852+39714880+14914880+14925339(Top 95%)14685(Top 97%)14685(Top 716%)
15K9.32 mi3.11 mi25578+27414773+10714773+10724983(Top 94%)14511(Top 96%)14511(Top 707%)
20K12.43 mi3.11 mi25406+17214691+8214691+8224900(Top 94%)14457(Top 95%)14457(Top 705%)
Half13.11 mi0.68 mi25392+1414685+614685+625240(Top 95%)14579(Top 96%)14579(Top 710%)
25K15.53 mi2.42 mi25319+7314642+4314642+4325020(Top 94%)14473(Top 95%)14473(Top 705%)
30K18.64 mi3.11 mi25265+5414605+3714605+3724921(Top 94%)14373(Top 95%)14373(Top 700%)
20M20.00 mi1.36 mi25243+2214589+1614589+1624668(Top 93%)14221(Top 94%)14221(Top 693%)
21M21.00 mi1.00 mi25182+6114557+3214557+3224182(Top 91%)13972(Top 92%)13972(Top 681%)
35K21.75 mi0.75 mi2518214552+514552+524930(Top 94%)14287(Top 94%)14287(Top 696%)
23M23.00 mi1.25 mi25116+6614506+4614506+4623575(Top 89%)13663(Top 90%)13663(Top 666%)
24M24.00 mi1.00 mi25088+2814490+1614490+1623862(Top 90%)13754(Top 91%)13754(Top 670%)
40K24.85 mi0.85 mi25056+3214471+1914471+1923472(Top 88%)13529(Top 89%)13529(Top 659%)
25.2M25.20 mi0.35 mi25029+2714457+1414457+1423090(Top 87%)13360(Top 88%)13360(Top 651%)
Finish26.22 mi1.02 mi24991+3814435+2214435+2223630(Top 89%)13641(Top 90%)13641(Top 665%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 94%
×21story building
+97ft-345ft

Overall

24983

Males

14511

M50-54

14511

5K→10K

3.1 - 6.2 mi

Top 95%
×5story building
+79ft-138ft

Overall

25339

Males

14685

M50-54

14685

10K→15K

6.2 - 9.3 mi

Top 94%
×3story building
+67ft-78ft

Overall

24983

Males

14511

M50-54

14511

15K→20K

9.3 - 12.4 mi

Top 94%
×5story building
+106ft-86ft

Overall

24900

Males

14457

M50-54

14457

20K→Half

12.4 - 13.1 mi

Top 95%
×2story building
+19ft-37ft

Overall

25240

Males

14579

M50-54

14579

Half→25K

13.1 - 15.5 mi

Top 94%
×4story building
+66ft-88ft

Overall

25020

Males

14473

M50-54

14473

25K→30K

15.5 - 18.6 mi

Top 94%
×9story building
+181ft-148ft

Overall

24921

Males

14373

M50-54

14373

30K→20M

18.6 - 20.0 mi

Top 93%
×5story building
+64ft-50ft

Overall

24668

Males

14221

M50-54

14221

20M→21M

20.0 - 21.0 mi

Top 91%
×8story building
+106ft-24ft

Overall

24182

Males

13972

M50-54

13972

21M→35K

21.0 - 21.8 mi

Top 94%
×7story building
+17ft-86ft

Overall

24930

Males

14287

M50-54

14287

35K→23M

21.8 - 23.0 mi

Top 89%
×5story building
+23ft-63ft

Overall

23575

Males

13663

M50-54

13663

23M→24M

23.0 - 24.0 mi

Top 90%
×6story building
+12ft-82ft

Overall

23862

Males

13754

M50-54

13754

24M→40K

24.0 - 24.9 mi

Top 88%
×1story
+6ft-20ft

Overall

23472

Males

13529

M50-54

13529

40K→25.2M

24.9 - 25.2 mi

Top 87%
×1story
+13ft-16ft

Overall

23090

Males

13360

M50-54

13360

25.2M→Finish

25.2 - 26.2 mi

Top 89%
×2story building
+22ft-21ft

Overall

23630

Males

13641

M50-54

13641

Passing Analysis

Category:
Athletes Passed
1452
Passed By
194
Net Change
+1258
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#26249
5K → 10K4036+397#26249#25852
10K → 15K2817+274#25852#25578
15K → 20K19119+172#25578#25406
20K → Half2511+14#25406#25392
Half → 25K10330+73#25392#25319
25K → 30K10349+54#25319#25265
30K → 20M3917+22#25265#25243
20M → 21M687+61#25243#25182
21M → 35K20200#25182#25182
35K → 23M748+66#25182#25116
23M → 24M368+28#25116#25088
24M → 40K419+32#25088#25056
40K → 25.2M270+27#25056#25029
25.2M → Finish413+38#25029#24991
TOTALS1452194+1258
📊

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