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BOSTON MARATHON 2023

Jonathan Erdelyi

Bib: 2274•M

NJ

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 14%
Gender (Male)
#0 / 15176
Top 23%
Masters (Masters Men)
#0 / 9891
Top 10%
Division (M40-44)
#0 / 2241
Top 26%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
20:25
Rank: #2685
Start → 5K
20:25 | 6:34/mi
10K· 6.21 mi
40:57
Rank: #3087 (-402)
5K → 10K
20:32 | 6:37/mi
15K· 9.32 mi
1:01:42
Rank: #3343 (-256)
10K → 15K
20:45 | 6:41/mi
20K· 12.43 mi
1:22:24
Rank: #3310 (+33)
15K → 20K
20:42 | 6:40/mi
Half· 13.11 mi
1:26:51
Rank: #3273 (+37)
20K → Half
4:27 | 6:31/mi
25K· 15.53 mi
1:43:13
Rank: #3313 (-40)
Half → 25K
16:22 | 6:45/mi
30K· 18.64 mi
2:04:20
Rank: #3198 (+115)
25K → 30K
21:07 | 6:48/mi
20M
2:13:41
Rank: #3181 (+17)
30K → 20M
9:21 | 6:53/mi
21M
2:20:57
Rank: #3175 (+6)
20M → 21M
7:16 | 7:16/mi
35K· 21.75 mi
2:25:59
Rank: #3170 (+5)
21M → 35K
5:02 | 6:44/mi
23M
2:34:58
Rank: #3256 (-86)
35K → 23M
8:59 | 7:10/mi
24M
2:42:02
Rank: #3335 (-79)
23M → 24M
7:04 | 7:04/mi
40K· 24.85 mi
2:48:25
Rank: #3468 (-133)
24M → 40K
6:23 | 7:28/mi
25.2M
2:51:12
Rank: #3513 (-45)
40K → 25.2M
2:47 | 8:04/mi
Finish· 26.22 mi
2:58:40
Rank: #3732 (-219)
25.2M → Finish
7:28 | 7:20/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:26:51
Pace6:37 /mi
2nd Half
Distance13.11 mi
Time1:31:49
Pace7:00 /mi
📊Positive Split: 5.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:21:1320:256:3420:25
6:34
-
10K
6.21 mi10:41:4540:576:3520:32
6:37
+0:03
15K
9.32 mi11:02:301:01:426:3720:45
6:41
+0:04
20K
12.43 mi11:23:121:22:246:3820:42
6:40
-0:01
Half
13.11 mi11:27:391:26:516:374:27
6:31
-0:09
25K
15.53 mi11:44:011:43:136:3916:22
6:45
+0:14
30K
18.64 mi12:05:082:04:206:4021:07
6:48
+0:03
20M
20.00 mi12:14:292:13:416:419:21
6:53
+0:05
21M
21.00 mi12:21:452:20:576:437:16
7:16
+0:23
35K
21.75 mi12:26:472:25:596:435:02
6:44
-0:32
23M
23.00 mi12:35:462:34:586:448:59
7:10
+0:26
24M
24.00 mi12:42:502:42:026:457:04
7:04
-0:06
40K
24.85 mi12:49:132:48:256:476:23
7:28
+0:24
25.2M
25.20 mi12:52:002:51:126:482:47
8:04
+0:36
Finish
26.22 mi12:59:282:58:406:497:28
7:20
-0:44

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

6:31 /mi

Average Pace

6:49 /mi

Slowest Pace

8:04 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

24:52

14% of race

Time at Steady Pace

1:53:51

64% of race

Time at Slower Pace

39:57

22% of race

Average Pace: 6:49 /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 mi10:21:1320:256:3420:25
6:34
#2685
10K
6.21 mi10:41:4540:576:3520:32
6:37
#3087
15K
9.32 mi11:02:301:01:426:3720:45
6:41
#3343
20K
12.43 mi11:23:121:22:246:3820:42
6:40
#3310
Half
13.11 mi11:27:391:26:516:374:27
6:31
#3273
25K
15.53 mi11:44:011:43:136:3916:22
6:45
#3313
30K
18.64 mi12:05:082:04:206:4021:07
6:48
#3198
20M
20.00 mi12:14:292:13:416:419:21
6:53
#3181
21M
21.00 mi12:21:452:20:576:437:16
7:16
#3175
35K
21.75 mi12:26:472:25:596:435:02
6:44
#3170
23M
23.00 mi12:35:462:34:586:448:59
7:10
#3256
24M
24.00 mi12:42:502:42:026:457:04
7:04
#3335
40K
24.85 mi12:49:132:48:256:476:23
7:28
#3468
25.2M
25.20 mi12:52:002:51:126:482:47
8:04
#3513
Finish
26.22 mi12:59:282:58:406:497:28
7:20
#3732
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM40-44Seg. OverallSeg. MalesSeg. M40-44
5K3.11 mi3.11 mi2685255725573925(Top 15%)3689(Top 24%)3689(Top 165%)
10K6.21 mi3.10 mi3087-4022937-3802937-3803563(Top 13%)3369(Top 22%)3369(Top 150%)
15K9.32 mi3.11 mi3343-2563171-2343171-2343925(Top 15%)3689(Top 24%)3689(Top 165%)
20K12.43 mi3.11 mi3310+333147+243147+243284(Top 12%)3118(Top 21%)3118(Top 139%)
Half13.11 mi0.68 mi3273+373113+343113+342965(Top 11%)2840(Top 19%)2840(Top 127%)
25K15.53 mi2.42 mi3313-403153-403153-403746(Top 14%)3526(Top 23%)3526(Top 157%)
30K18.64 mi3.11 mi3198+1153045+1083045+1082974(Top 11%)2816(Top 19%)2816(Top 126%)
20M20.00 mi1.36 mi3181+173023+223023+223308(Top 12%)3097(Top 20%)3097(Top 138%)
21M21.00 mi1.00 mi3175+63012+113012+113452(Top 13%)3210(Top 21%)3210(Top 143%)
35K21.75 mi0.75 mi3170+53007+53007+53713(Top 14%)3430(Top 23%)3430(Top 153%)
23M23.00 mi1.25 mi3256-863085-783085-784649(Top 17%)4192(Top 28%)4192(Top 187%)
24M24.00 mi1.00 mi3335-793156-713156-714985(Top 19%)4403(Top 29%)4403(Top 196%)
40K24.85 mi0.85 mi3468-1333276-1203276-1206445(Top 24%)5291(Top 35%)5291(Top 236%)
25.2M25.20 mi0.35 mi3513-453316-403316-406799(Top 26%)5431(Top 36%)5431(Top 242%)
Finish26.22 mi1.02 mi3732-2193505-1893505-1897250(Top 27%)5705(Top 38%)5705(Top 255%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 15%
×21stories
+97ft-345ft

Overall

3925

Males

3689

M40-44

3689

5K→10K

3.1 - 6.2 mi

Top 13%
×5stories
+79ft-138ft

Overall

3563

Males

3369

M40-44

3369

10K→15K

6.2 - 9.3 mi

Top 15%
×3stories
+67ft-78ft

Overall

3925

Males

3689

M40-44

3689

15K→20K

9.3 - 12.4 mi

Top 12%
×5stories
+106ft-86ft

Overall

3284

Males

3118

M40-44

3118

20K→Half

12.4 - 13.1 mi

Top 11%
×2stories
+19ft-37ft

Overall

2965

Males

2840

M40-44

2840

Half→25K

13.1 - 15.5 mi

Top 14%
×4stories
+66ft-88ft

Overall

3746

Males

3526

M40-44

3526

25K→30K

15.5 - 18.6 mi

Top 11%
×9stories
+181ft-148ft

Overall

2974

Males

2816

M40-44

2816

30K→20M

18.6 - 20.0 mi

Top 12%
×5stories
+64ft-50ft

Overall

3308

Males

3097

M40-44

3097

20M→21M

20.0 - 21.0 mi

Top 13%
×8stories
+106ft-24ft

Overall

3452

Males

3210

M40-44

3210

21M→35K

21.0 - 21.8 mi

Top 14%
×7stories
+17ft-86ft

Overall

3713

Males

3430

M40-44

3430

35K→23M

21.8 - 23.0 mi

Top 17%
×5stories
+23ft-63ft

Overall

4649

Males

4192

M40-44

4192

23M→24M

23.0 - 24.0 mi

Top 19%
×6stories
+12ft-82ft

Overall

4985

Males

4403

M40-44

4403

24M→40K

24.0 - 24.9 mi

Top 24%
×1story
+6ft-20ft

Overall

6445

Males

5291

M40-44

5291

40K→25.2M

24.9 - 25.2 mi

Top 26%
×1story
+13ft-16ft

Overall

6799

Males

5431

M40-44

5431

25.2M→Finish

25.2 - 26.2 mi

Top 27%
×2stories
+22ft-21ft

Overall

7250

Males

5705

M40-44

5705

Passing Analysis

Category:
Athletes Passed
647
Passed By
1694
Net Change
-1047
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#2685
5K → 10K44446-402#2685#3087
10K → 15K25281-256#3087#3343
15K → 20K9966+33#3343#3310
20K → Half447+37#3310#3273
Half → 25K5797-40#3273#3313
25K → 30K15439+115#3313#3198
30K → 20M6346+17#3198#3181
20M → 21M4236+6#3181#3175
21M → 35K3126+5#3175#3170
35K → 23M34120-86#3170#3256
23M → 24M21100-79#3256#3335
24M → 40K14147-133#3335#3468
40K → 25.2M1055-45#3468#3513
25.2M → Finish9228-219#3513#3732
TOTALS6471694-1047
📊

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