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BOSTON MARATHON 2023

John Muthoni

Bib: 4336•M

CA

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 29%
Gender (Male)
#0 / 15176
Top 44%
Masters (Masters Men)
#0 / 9891
Top 31%
Division (M40-44)
#0 / 2241
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
20:13
Rank: #2325
Start → 5K
20:13 | 6:30/mi
10K· 6.21 mi
39:57
Rank: #2135 (+190)
5K → 10K
19:44 | 6:21/mi
15K· 9.32 mi
59:46
Rank: #2068 (+67)
10K → 15K
19:49 | 6:23/mi
20K· 12.43 mi
1:19:57
Rank: #2109 (-41)
15K → 20K
20:11 | 6:30/mi
Half· 13.11 mi
1:24:18
Rank: #2101 (+8)
20K → Half
4:21 | 6:23/mi
25K· 15.53 mi
1:40:04
Rank: #2105 (-4)
Half → 25K
15:46 | 6:30/mi
30K· 18.64 mi
2:00:47
Rank: #2123 (-18)
25K → 30K
20:43 | 6:40/mi
20M
2:10:11
Rank: #2191 (-68)
30K → 20M
9:24 | 6:55/mi
21M
2:17:55
Rank: #2329 (-138)
20M → 21M
7:44 | 7:44/mi
35K· 21.75 mi
2:23:02
Rank: #2366 (-37)
21M → 35K
5:07 | 6:50/mi
23M
2:32:22
Rank: #2496 (-130)
35K → 23M
9:20 | 7:27/mi
24M
2:40:07
Rank: #2783 (-287)
23M → 24M
7:45 | 7:45/mi
40K· 24.85 mi
2:48:11
Rank: #3391 (-608)
24M → 40K
8:04 | 9:26/mi
25.2M
2:52:13
Rank: #3888 (-497)
40K → 25.2M
4:02 | 11:42/mi
Finish· 26.22 mi
3:15:12
Rank: #7792 (-3904)
25.2M → Finish
22:59 | 22:33/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:24:18
Pace6:26 /mi
2nd Half
Distance13.11 mi
Time1:50:54
Pace8:28 /mi
📊Positive Split: 31.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:22:0220:136:3020:13
6:30
-
10K
6.21 mi10:41:4639:576:2619:44
6:21
-0:09
15K
9.32 mi11:01:3559:466:2519:49
6:23
+0:02
20K
12.43 mi11:21:461:19:576:2620:11
6:30
+0:07
Half
13.11 mi11:26:071:24:186:264:21
6:23
-0:07
25K
15.53 mi11:41:531:40:046:2715:46
6:30
+0:07
30K
18.64 mi12:02:362:00:476:2920:43
6:40
+0:10
20M
20.00 mi12:12:002:10:116:319:24
6:55
+0:15
21M
21.00 mi12:19:442:17:556:347:44
7:44
+0:49
35K
21.75 mi12:24:512:23:026:355:07
6:50
-0:54
23M
23.00 mi12:34:112:32:226:379:20
7:27
+0:37
24M
24.00 mi12:41:562:40:076:407:45
7:45
+0:18
40K
24.85 mi12:50:002:48:116:468:04
9:26
+1:41
25.2M
25.20 mi12:54:022:52:136:504:02
11:42
+2:16
Finish
26.22 mi13:17:013:15:127:2722:59
22:33
+10:51

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

6:21 /mi

Average Pace

7:27 /mi

Slowest Pace

22:33 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

0:00

0% of race

Time at Steady Pace

2:40:07

82% of race

Time at Slower Pace

35:05

18% of race

Average Pace: 7:27 /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 mi10:22:0220:136:3020:13
6:30
#2325
10K
6.21 mi10:41:4639:576:2619:44
6:21
#2135
15K
9.32 mi11:01:3559:466:2519:49
6:23
#2068
20K
12.43 mi11:21:461:19:576:2620:11
6:30
#2109
Half
13.11 mi11:26:071:24:186:264:21
6:23
#2101
25K
15.53 mi11:41:531:40:046:2715:46
6:30
#2105
30K
18.64 mi12:02:362:00:476:2920:43
6:40
#2123
20M
20.00 mi12:12:002:10:116:319:24
6:55
#2191
21M
21.00 mi12:19:442:17:556:347:44
7:44
#2329
35K
21.75 mi12:24:512:23:026:355:07
6:50
#2366
23M
23.00 mi12:34:112:32:226:379:20
7:27
#2496
24M
24.00 mi12:41:562:40:076:407:45
7:45
#2783
40K
24.85 mi12:50:002:48:116:468:04
9:26
#3391
25.2M
25.20 mi12:54:022:52:136:504:02
11:42
#3888
Finish
26.22 mi13:17:013:15:127:2722:59
22:33
#7792
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM40-44Seg. OverallSeg. MalesSeg. M40-44
5K3.11 mi3.11 mi2325221722171999(Top 8%)1914(Top 13%)1914(Top 85%)
10K6.21 mi3.10 mi2135+1902044+1732044+1731995(Top 7%)1912(Top 13%)1912(Top 85%)
15K9.32 mi3.11 mi2068+671983+611983+611999(Top 8%)1914(Top 13%)1914(Top 85%)
20K12.43 mi3.11 mi2109-412020-372020-372277(Top 9%)2182(Top 14%)2182(Top 97%)
Half13.11 mi0.68 mi2101+82012+82012+82161(Top 8%)2077(Top 14%)2077(Top 93%)
25K15.53 mi2.42 mi2105-42020-82020-82192(Top 8%)2103(Top 14%)2103(Top 94%)
30K18.64 mi3.11 mi2123-182036-162036-162265(Top 9%)2160(Top 14%)2160(Top 96%)
20M20.00 mi1.36 mi2191-682101-652101-653558(Top 13%)3323(Top 22%)3323(Top 148%)
21M21.00 mi1.00 mi2329-1382231-1302231-1305817(Top 22%)5069(Top 33%)5069(Top 226%)
35K21.75 mi0.75 mi2366-372266-352266-354481(Top 17%)4099(Top 27%)4099(Top 183%)
23M23.00 mi1.25 mi2496-1302388-1222388-1226172(Top 23%)5301(Top 35%)5301(Top 237%)
24M24.00 mi1.00 mi2783-2872649-2612649-2619393(Top 35%)7091(Top 47%)7091(Top 316%)
40K24.85 mi0.85 mi3391-6083204-5553204-55518057(Top 68%)11053(Top 73%)11053(Top 493%)
25.2M25.20 mi0.35 mi3888-4973647-4433647-44321920(Top 82%)12797(Top 84%)12797(Top 571%)
Finish26.22 mi1.02 mi7792-39046610-29636610-296326615(Top 100%)15170(Top 100%)15170(Top 677%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 8%
×21stories
+97ft-345ft

Overall

1999

Males

1914

M40-44

1914

5K→10K

3.1 - 6.2 mi

Top 7%
×5stories
+79ft-138ft

Overall

1995

Males

1912

M40-44

1912

10K→15K

6.2 - 9.3 mi

Top 8%
×3stories
+67ft-78ft

Overall

1999

Males

1914

M40-44

1914

15K→20K

9.3 - 12.4 mi

Top 9%
×5stories
+106ft-86ft

Overall

2277

Males

2182

M40-44

2182

20K→Half

12.4 - 13.1 mi

Top 8%
×2stories
+19ft-37ft

Overall

2161

Males

2077

M40-44

2077

Half→25K

13.1 - 15.5 mi

Top 8%
×4stories
+66ft-88ft

Overall

2192

Males

2103

M40-44

2103

25K→30K

15.5 - 18.6 mi

Top 9%
×9stories
+181ft-148ft

Overall

2265

Males

2160

M40-44

2160

30K→20M

18.6 - 20.0 mi

Top 13%
×5stories
+64ft-50ft

Overall

3558

Males

3323

M40-44

3323

20M→21M

20.0 - 21.0 mi

Top 22%
×8stories
+106ft-24ft

Overall

5817

Males

5069

M40-44

5069

21M→35K

21.0 - 21.8 mi

Top 17%
×7stories
+17ft-86ft

Overall

4481

Males

4099

M40-44

4099

35K→23M

21.8 - 23.0 mi

Top 23%
×5stories
+23ft-63ft

Overall

6172

Males

5301

M40-44

5301

23M→24M

23.0 - 24.0 mi

Top 35%
×6stories
+12ft-82ft

Overall

9393

Males

7091

M40-44

7091

24M→40K

24.0 - 24.9 mi

Top 68%
×1story
+6ft-20ft

Overall

18057

Males

11053

M40-44

11053

40K→25.2M

24.9 - 25.2 mi

Top 82%
×1story
+13ft-16ft

Overall

21920

Males

12797

M40-44

12797

25.2M→Finish

25.2 - 26.2 mi

Top 100%
×2stories
+22ft-21ft

Overall

26615

Males

15170

M40-44

15170

Passing Analysis

Category:
Athletes Passed
559
Passed By
6026
Net Change
-5467
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#2325
5K → 10K23242+190#2325#2135
10K → 15K10134+67#2135#2068
15K → 20K4687-41#2068#2109
20K → Half2113+8#2109#2101
Half → 25K3741-4#2101#2105
25K → 30K6482-18#2105#2123
30K → 20M1583-68#2123#2191
20M → 21M8146-138#2191#2329
21M → 35K1552-37#2329#2366
35K → 23M14144-130#2366#2496
23M → 24M3290-287#2496#2783
24M → 40K2610-608#2783#3391
40K → 25.2M1498-497#3391#3888
25.2M → Finish03904-3904#3888#7792
TOTALS5596026-5467
📊

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