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BOSTON MARATHON 2023

John Mezger

Bib: 5131•M

CA

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 11%
Gender (Male)
#0 / 15176
Top 18%
Division (M18-39)
#0 / 5285
Top 39%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
21:09
Rank: #4728
Start → 5K
21:09 | 6:48/mi
10K· 6.21 mi
42:05
Rank: #4709 (+19)
5K → 10K
20:56 | 6:44/mi
15K· 9.32 mi
1:02:57
Rank: #4540 (+169)
10K → 15K
20:52 | 6:43/mi
20K· 12.43 mi
1:23:50
Rank: #4306 (+234)
15K → 20K
20:53 | 6:43/mi
Half· 13.11 mi
1:28:23
Rank: #4275 (+31)
20K → Half
4:33 | 6:40/mi
25K· 15.53 mi
1:44:44
Rank: #4141 (+134)
Half → 25K
16:21 | 6:45/mi
30K· 18.64 mi
2:05:45
Rank: #3809 (+332)
25K → 30K
21:01 | 6:46/mi
20M
2:14:57
Rank: #3669 (+140)
30K → 20M
9:12 | 6:46/mi
21M
2:21:56
Rank: #3526 (+143)
20M → 21M
6:59 | 6:59/mi
35K· 21.75 mi
2:26:46
Rank: #3430 (+96)
21M → 35K
4:50 | 6:28/mi
23M
2:35:02
Rank: #3272 (+158)
35K → 23M
8:16 | 6:36/mi
24M
2:41:31
Rank: #3181 (+91)
23M → 24M
6:29 | 6:29/mi
40K· 24.85 mi
2:47:07
Rank: #3072 (+109)
24M → 40K
5:36 | 6:33/mi
25.2M
2:49:28
Rank: #3012 (+60)
40K → 25.2M
2:21 | 6:49/mi
Finish· 26.22 mi
2:55:40
Rank: #2855 (+157)
25.2M → Finish
6:12 | 6:05/mi

The Course

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Half Splits

1st Half· via Half
Distance13.11 mi
Time1:28:23
Pace6:45 /mi
2nd Half✓ Faster
Distance13.11 mi
Time1:27:17
Pace6:39 /mi
📊Negative Split: 1.2% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:24:0621:096:4821:09
6:48
-
10K
6.21 mi10:45:0242:056:4620:56
6:44
-0:04
15K
9.32 mi11:05:541:02:576:4520:52
6:43
-0:01
20K
12.43 mi11:26:471:23:506:4520:53
6:43
0:00
Half
13.11 mi11:31:201:28:236:454:33
6:40
-0:03
25K
15.53 mi11:47:411:44:446:4516:21
6:45
+0:05
30K
18.64 mi12:08:422:05:456:4521:01
6:46
+0:01
20M
20.00 mi12:17:542:14:576:459:12
6:46
0:00
21M
21.00 mi12:24:532:21:566:466:59
6:59
+0:13
35K
21.75 mi12:29:432:26:466:454:50
6:28
-0:31
23M
23.00 mi12:37:592:35:026:448:16
6:36
+0:08
24M
24.00 mi12:44:282:41:316:446:29
6:29
-0:07
40K
24.85 mi12:50:042:47:076:435:36
6:33
+0:04
25.2M
25.20 mi12:52:252:49:286:432:21
6:49
+0:16
Finish
26.22 mi12:58:372:55:406:426:12
6:05
-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

6:05 /mi

Average Pace

6:42 /mi

Slowest Pace

6:59 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

35:56

20% of race

Time at Steady Pace

2:19:44

80% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:42 /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 mi10:24:0621:096:4821:09
6:48
#4728
10K
6.21 mi10:45:0242:056:4620:56
6:44
#4709
15K
9.32 mi11:05:541:02:576:4520:52
6:43
#4540
20K
12.43 mi11:26:471:23:506:4520:53
6:43
#4306
Half
13.11 mi11:31:201:28:236:454:33
6:40
#4275
25K
15.53 mi11:47:411:44:446:4516:21
6:45
#4141
30K
18.64 mi12:08:422:05:456:4521:01
6:46
#3809
20M
20.00 mi12:17:542:14:576:459:12
6:46
#3669
21M
21.00 mi12:24:532:21:566:466:59
6:59
#3526
35K
21.75 mi12:29:432:26:466:454:50
6:28
#3430
23M
23.00 mi12:37:592:35:026:448:16
6:36
#3272
24M
24.00 mi12:44:282:41:316:446:29
6:29
#3181
40K
24.85 mi12:50:042:47:076:435:36
6:33
#3072
25.2M
25.20 mi12:52:252:49:286:432:21
6:49
#3012
Finish
26.22 mi12:58:372:55:406:426:12
6:05
#2855
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi4728439843984264(Top 16%)3994(Top 26%)3994(Top 76%)
10K6.21 mi3.10 mi4709+194390+84390+84688(Top 18%)4361(Top 29%)4361(Top 83%)
15K9.32 mi3.11 mi4540+1694240+1504240+1504264(Top 16%)3994(Top 26%)3994(Top 76%)
20K12.43 mi3.11 mi4306+2344034+2064034+2063722(Top 14%)3516(Top 23%)3516(Top 67%)
Half13.11 mi0.68 mi4275+314003+314003+313957(Top 15%)3709(Top 24%)3709(Top 70%)
25K15.53 mi2.42 mi4141+1343882+1213882+1213674(Top 14%)3459(Top 23%)3459(Top 65%)
30K18.64 mi3.11 mi3809+3323592+2903592+2902771(Top 10%)2629(Top 17%)2629(Top 50%)
20M20.00 mi1.36 mi3669+1403465+1273465+1272642(Top 10%)2499(Top 16%)2499(Top 47%)
21M21.00 mi1.00 mi3526+1433340+1253340+1252088(Top 8%)1974(Top 13%)1974(Top 37%)
35K21.75 mi0.75 mi3430+963247+933247+932252(Top 8%)2139(Top 14%)2139(Top 40%)
23M23.00 mi1.25 mi3272+1583098+1493098+1491789(Top 7%)1698(Top 11%)1698(Top 32%)
24M24.00 mi1.00 mi3181+913013+853013+852039(Top 8%)1914(Top 13%)1914(Top 36%)
40K24.85 mi0.85 mi3072+1092910+1032910+1031747(Top 7%)1645(Top 11%)1645(Top 31%)
25.2M25.20 mi0.35 mi3012+602856+542856+541236(Top 5%)1175(Top 8%)1175(Top 22%)
Finish26.22 mi1.02 mi2855+1572706+1502706+150953(Top 4%)911(Top 6%)911(Top 17%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 16%
×21stories
+97ft-345ft

Overall

4264

Males

3994

M18-39

3994

5K→10K

3.1 - 6.2 mi

Top 18%
×5stories
+79ft-138ft

Overall

4688

Males

4361

M18-39

4361

10K→15K

6.2 - 9.3 mi

Top 16%
×3stories
+67ft-78ft

Overall

4264

Males

3994

M18-39

3994

15K→20K

9.3 - 12.4 mi

Top 14%
×5stories
+106ft-86ft

Overall

3722

Males

3516

M18-39

3516

20K→Half

12.4 - 13.1 mi

Top 15%
×2stories
+19ft-37ft

Overall

3957

Males

3709

M18-39

3709

Half→25K

13.1 - 15.5 mi

Top 14%
×4stories
+66ft-88ft

Overall

3674

Males

3459

M18-39

3459

25K→30K

15.5 - 18.6 mi

Top 10%
×9stories
+181ft-148ft

Overall

2771

Males

2629

M18-39

2629

30K→20M

18.6 - 20.0 mi

Top 10%
×5stories
+64ft-50ft

Overall

2642

Males

2499

M18-39

2499

20M→21M

20.0 - 21.0 mi

Top 8%
×8stories
+106ft-24ft

Overall

2088

Males

1974

M18-39

1974

21M→35K

21.0 - 21.8 mi

Top 8%
×7stories
+17ft-86ft

Overall

2252

Males

2139

M18-39

2139

35K→23M

21.8 - 23.0 mi

Top 7%
×5stories
+23ft-63ft

Overall

1789

Males

1698

M18-39

1698

23M→24M

23.0 - 24.0 mi

Top 8%
×6stories
+12ft-82ft

Overall

2039

Males

1914

M18-39

1914

24M→40K

24.0 - 24.9 mi

Top 7%
×1story
+6ft-20ft

Overall

1747

Males

1645

M18-39

1645

40K→25.2M

24.9 - 25.2 mi

Top 5%
×1story
+13ft-16ft

Overall

1236

Males

1175

M18-39

1175

25.2M→Finish

25.2 - 26.2 mi

Top 4%
×2stories
+22ft-21ft

Overall

953

Males

911

M18-39

911

Passing Analysis

Category:
Athletes Passed
2198
Passed By
325
Net Change
+1873
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#4728
5K → 10K216197+19#4728#4709
10K → 15K22152+169#4709#4540
15K → 20K24814+234#4540#4306
20K → Half387+31#4306#4275
Half → 25K15521+134#4275#4141
25K → 30K3397+332#4141#3809
30K → 20M1488+140#3809#3669
20M → 21M1452+143#3669#3526
21M → 35K1004+96#3526#3430
35K → 23M1635+158#3430#3272
23M → 24M965+91#3272#3181
24M → 40K1112+109#3181#3072
40K → 25.2M611+60#3072#3012
25.2M → Finish1570+157#3012#2855
TOTALS2198325+1873
📊

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