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BOSTON MARATHON 2023

Johnny Vanderhorst

Bib: 2574•M

KS

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 5%
Gender (Male)
#0 / 15176
Top 9%
Masters (Masters Men)
#0 / 9891
Top 2%
Division (M40-44)
#0 / 2241
Top 7%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
19:33
Rank: #1407
Start → 5K
19:33 | 6:18/mi
10K· 6.21 mi
38:17
Rank: #1114 (+293)
5K → 10K
18:44 | 6:02/mi
15K· 9.32 mi
57:21
Rank: #1087 (+27)
10K → 15K
19:04 | 6:08/mi
20K· 12.43 mi
1:16:34
Rank: #1057 (+30)
15K → 20K
19:13 | 6:11/mi
Half· 13.11 mi
1:20:45
Rank: #1061 (-4)
20K → Half
4:11 | 6:08/mi
25K· 15.53 mi
1:36:01
Rank: #1074 (-13)
Half → 25K
15:16 | 6:18/mi
30K· 18.64 mi
1:56:12
Rank: #1125 (-51)
25K → 30K
20:11 | 6:30/mi
20M
2:05:18
Rank: #1172 (-47)
30K → 20M
9:06 | 6:42/mi
21M
2:12:21
Rank: #1199 (-27)
20M → 21M
7:03 | 7:03/mi
35K· 21.75 mi
2:17:15
Rank: #1227 (-28)
21M → 35K
4:54 | 6:33/mi
23M
2:25:51
Rank: #1307 (-80)
35K → 23M
8:36 | 6:52/mi
24M
2:32:29
Rank: #1330 (-23)
23M → 24M
6:38 | 6:38/mi
40K· 24.85 mi
2:38:17
Rank: #1361 (-31)
24M → 40K
5:48 | 6:47/mi
25.2M
2:40:48
Rank: #1376 (-15)
40K → 25.2M
2:31 | 7:18/mi
Finish· 26.22 mi
2:47:28
Rank: #1403 (-27)
25.2M → Finish
6:40 | 6:33/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:20:45
Pace6:10 /mi
2nd Half
Distance13.11 mi
Time1:26:43
Pace6:37 /mi
📊Positive Split: 7.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:20:2719:336:1819:33
6:18
-
10K
6.21 mi10:39:1138:176:1018:44
6:02
-0:16
15K
9.32 mi10:58:1557:216:0919:04
6:08
+0:06
20K
12.43 mi11:17:281:16:346:1019:13
6:11
+0:03
Half
13.11 mi11:21:391:20:456:104:11
6:08
-0:03
25K
15.53 mi11:36:551:36:016:1115:16
6:18
+0:10
30K
18.64 mi11:57:061:56:126:1420:11
6:30
+0:12
20M
20.00 mi12:06:122:05:186:169:06
6:42
+0:12
21M
21.00 mi12:13:152:12:216:187:03
7:03
+0:21
35K
21.75 mi12:18:092:17:156:194:54
6:33
-0:30
23M
23.00 mi12:26:452:25:516:208:36
6:52
+0:19
24M
24.00 mi12:33:232:32:296:216:38
6:38
-0:14
40K
24.85 mi12:39:112:38:176:225:48
6:47
+0:09
25.2M
25.20 mi12:41:422:40:486:232:31
7:18
+0:31
Finish
26.22 mi12:48:222:47:286:246:40
6:33
-0:45

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

6:02 /mi

Average Pace

6:24 /mi

Slowest Pace

7:18 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:36:01

57% of race

Time at Steady Pace

47:29

28% of race

Time at Slower Pace

23:58

14% of race

Average Pace: 6:23 /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 mi10:20:2719:336:1819:33
6:18
#1407
10K
6.21 mi10:39:1138:176:1018:44
6:02
#1114
15K
9.32 mi10:58:1557:216:0919:04
6:08
#1087
20K
12.43 mi11:17:281:16:346:1019:13
6:11
#1057
Half
13.11 mi11:21:391:20:456:104:11
6:08
#1061
25K
15.53 mi11:36:551:36:016:1115:16
6:18
#1074
30K
18.64 mi11:57:061:56:126:1420:11
6:30
#1125
20M
20.00 mi12:06:122:05:186:169:06
6:42
#1172
21M
21.00 mi12:13:152:12:216:187:03
7:03
#1199
35K
21.75 mi12:18:092:17:156:194:54
6:33
#1227
23M
23.00 mi12:26:452:25:516:208:36
6:52
#1307
24M
24.00 mi12:33:232:32:296:216:38
6:38
#1330
40K
24.85 mi12:39:112:38:176:225:48
6:47
#1361
25.2M
25.20 mi12:41:422:40:486:232:31
7:18
#1376
Finish
26.22 mi12:48:222:47:286:246:40
6:33
#1403
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM40-44Seg. OverallSeg. MalesSeg. M40-44
5K3.11 mi3.11 mi1407133713371063(Top 4%)1010(Top 7%)1010(Top 45%)
10K6.21 mi3.10 mi1114+2931054+2831054+283886(Top 3%)838(Top 6%)838(Top 37%)
15K9.32 mi3.11 mi1087+271030+241030+241063(Top 4%)1010(Top 7%)1010(Top 45%)
20K12.43 mi3.11 mi1057+301004+261004+261017(Top 4%)967(Top 6%)967(Top 43%)
Half13.11 mi0.68 mi1061-41007-31007-31128(Top 4%)1077(Top 7%)1077(Top 48%)
25K15.53 mi2.42 mi1074-131019-121019-121329(Top 5%)1269(Top 8%)1269(Top 57%)
30K18.64 mi3.11 mi1125-511073-541073-541538(Top 6%)1473(Top 10%)1473(Top 66%)
20M20.00 mi1.36 mi1172-471118-451118-452238(Top 8%)2127(Top 14%)2127(Top 95%)
21M21.00 mi1.00 mi1199-271145-271145-272348(Top 9%)2217(Top 15%)2217(Top 99%)
35K21.75 mi0.75 mi1227-281172-271172-272647(Top 10%)2490(Top 16%)2490(Top 111%)
23M23.00 mi1.25 mi1307-801248-761248-763014(Top 11%)2809(Top 19%)2809(Top 125%)
24M24.00 mi1.00 mi1330-231269-211269-212701(Top 10%)2510(Top 17%)2510(Top 112%)
40K24.85 mi0.85 mi1361-311297-281297-282713(Top 10%)2499(Top 16%)2499(Top 112%)
25.2M25.20 mi0.35 mi1376-151311-141311-142846(Top 11%)2601(Top 17%)2601(Top 116%)
Finish26.22 mi1.02 mi1403-271336-251336-252664(Top 10%)2436(Top 16%)2436(Top 109%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 4%
×21stories
+97ft-345ft

Overall

1063

Males

1010

M40-44

1010

5K→10K

3.1 - 6.2 mi

Top 3%
×5stories
+79ft-138ft

Overall

886

Males

838

M40-44

838

10K→15K

6.2 - 9.3 mi

Top 4%
×3stories
+67ft-78ft

Overall

1063

Males

1010

M40-44

1010

15K→20K

9.3 - 12.4 mi

Top 4%
×5stories
+106ft-86ft

Overall

1017

Males

967

M40-44

967

20K→Half

12.4 - 13.1 mi

Top 4%
×2stories
+19ft-37ft

Overall

1128

Males

1077

M40-44

1077

Half→25K

13.1 - 15.5 mi

Top 5%
×4stories
+66ft-88ft

Overall

1329

Males

1269

M40-44

1269

25K→30K

15.5 - 18.6 mi

Top 6%
×9stories
+181ft-148ft

Overall

1538

Males

1473

M40-44

1473

30K→20M

18.6 - 20.0 mi

Top 8%
×5stories
+64ft-50ft

Overall

2238

Males

2127

M40-44

2127

20M→21M

20.0 - 21.0 mi

Top 9%
×8stories
+106ft-24ft

Overall

2348

Males

2217

M40-44

2217

21M→35K

21.0 - 21.8 mi

Top 10%
×7stories
+17ft-86ft

Overall

2647

Males

2490

M40-44

2490

35K→23M

21.8 - 23.0 mi

Top 11%
×5stories
+23ft-63ft

Overall

3014

Males

2809

M40-44

2809

23M→24M

23.0 - 24.0 mi

Top 10%
×6stories
+12ft-82ft

Overall

2701

Males

2510

M40-44

2510

24M→40K

24.0 - 24.9 mi

Top 10%
×1story
+6ft-20ft

Overall

2713

Males

2499

M40-44

2499

40K→25.2M

24.9 - 25.2 mi

Top 11%
×1story
+13ft-16ft

Overall

2846

Males

2601

M40-44

2601

25.2M→Finish

25.2 - 26.2 mi

Top 10%
×2stories
+22ft-21ft

Overall

2664

Males

2436

M40-44

2436

Passing Analysis

Category:
Athletes Passed
515
Passed By
511
Net Change
+4
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#1407
5K → 10K2952+293#1407#1114
10K → 15K4518+27#1114#1087
15K → 20K4616+30#1087#1057
20K → Half37-4#1057#1061
Half → 25K2033-13#1061#1074
25K → 30K2374-51#1074#1125
30K → 20M956-47#1125#1172
20M → 21M1744-27#1172#1199
21M → 35K836-28#1199#1227
35K → 23M787-80#1227#1307
23M → 24M1437-23#1307#1330
24M → 40K637-31#1330#1361
40K → 25.2M318-15#1361#1376
25.2M → Finish1946-27#1376#1403
TOTALS515511+4
📊

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