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BOSTON MARATHON 2023

Jonathan Bach

Bib: 5405•M

PA

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 16%
Gender (Male)
#0 / 15176
Top 25%
Division (M18-39)
#0 / 5285
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
21:27
Rank: #5575
Start → 5K
21:27 | 6:54/mi
10K· 6.21 mi
42:27
Rank: #5226 (+349)
5K → 10K
21:00 | 6:46/mi
15K· 9.32 mi
1:03:25
Rank: #5028 (+198)
10K → 15K
20:58 | 6:45/mi
20K· 12.43 mi
1:24:39
Rank: #4942 (+86)
15K → 20K
21:14 | 6:50/mi
Half· 13.11 mi
1:29:14
Rank: #4928 (+14)
20K → Half
4:35 | 6:43/mi
25K· 15.53 mi
1:45:48
Rank: #4799 (+129)
Half → 25K
16:34 | 6:50/mi
30K· 18.64 mi
2:07:47
Rank: #4792 (+7)
25K → 30K
21:59 | 7:05/mi
20M
2:17:13
Rank: #4680 (+112)
30K → 20M
9:26 | 6:57/mi
21M
2:24:33
Rank: #4609 (+71)
20M → 21M
7:20 | 7:20/mi
35K· 21.75 mi
2:29:37
Rank: #4572 (+37)
21M → 35K
5:04 | 6:46/mi
23M
2:38:17
Rank: #4469 (+103)
35K → 23M
8:40 | 6:55/mi
24M
2:44:53
Rank: #4337 (+132)
23M → 24M
6:36 | 6:36/mi
40K· 24.85 mi
2:50:44
Rank: #4261 (+76)
24M → 40K
5:51 | 6:51/mi
25.2M
2:53:12
Rank: #4218 (+43)
40K → 25.2M
2:28 | 7:09/mi
Finish· 26.22 mi
2:59:44
Rank: #4128 (+90)
25.2M → Finish
6:32 | 6:25/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:29:14
Pace6:48 /mi
2nd Half
Distance13.11 mi
Time1:30:30
Pace6:54 /mi
📊Positive Split: 1.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:24:2521:276:5421:27
6:54
-
10K
6.21 mi10:45:2542:276:5021:00
6:46
-0:08
15K
9.32 mi11:06:231:03:256:4820:58
6:45
-0:01
20K
12.43 mi11:27:371:24:396:4921:14
6:50
+0:05
Half
13.11 mi11:32:121:29:146:484:35
6:43
-0:07
25K
15.53 mi11:48:461:45:486:4916:34
6:50
+0:07
30K
18.64 mi12:10:452:07:476:5121:59
7:05
+0:15
20M
20.00 mi12:20:112:17:136:529:26
6:57
-0:08
21M
21.00 mi12:27:312:24:336:537:20
7:20
+0:23
35K
21.75 mi12:32:352:29:376:535:04
6:46
-0:34
23M
23.00 mi12:41:152:38:176:538:40
6:55
+0:09
24M
24.00 mi12:47:512:44:536:526:36
6:36
-0:19
40K
24.85 mi12:53:422:50:446:525:51
6:51
+0:15
25.2M
25.20 mi12:56:102:53:126:522:28
7:09
+0:18
Finish
26.22 mi13:02:422:59:446:526:32
6:25
-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

6:25 /mi

Average Pace

6:52 /mi

Slowest Pace

7:20 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:27:57

82% of race

Time at Steady Pace

31:47

18% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:51 /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 mi10:24:2521:276:5421:27
6:54
#5575
10K
6.21 mi10:45:2542:276:5021:00
6:46
#5226
15K
9.32 mi11:06:231:03:256:4820:58
6:45
#5028
20K
12.43 mi11:27:371:24:396:4921:14
6:50
#4942
Half
13.11 mi11:32:121:29:146:484:35
6:43
#4928
25K
15.53 mi11:48:461:45:486:4916:34
6:50
#4799
30K
18.64 mi12:10:452:07:476:5121:59
7:05
#4792
20M
20.00 mi12:20:112:17:136:529:26
6:57
#4680
21M
21.00 mi12:27:312:24:336:537:20
7:20
#4609
35K
21.75 mi12:32:352:29:376:535:04
6:46
#4572
23M
23.00 mi12:41:152:38:176:538:40
6:55
#4469
24M
24.00 mi12:47:512:44:536:526:36
6:36
#4337
40K
24.85 mi12:53:422:50:446:525:51
6:51
#4261
25.2M
25.20 mi12:56:102:53:126:522:28
7:09
#4218
Finish
26.22 mi13:02:422:59:446:526:32
6:25
#4128
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi5575513451344586(Top 17%)4282(Top 28%)4282(Top 81%)
10K6.21 mi3.10 mi5226+3494837+2974837+2974891(Top 18%)4536(Top 30%)4536(Top 86%)
15K9.32 mi3.11 mi5028+1984668+1694668+1694586(Top 17%)4282(Top 28%)4282(Top 81%)
20K12.43 mi3.11 mi4942+864601+674601+674753(Top 18%)4415(Top 29%)4415(Top 84%)
Half13.11 mi0.68 mi4928+144584+174584+174496(Top 17%)4188(Top 28%)4188(Top 79%)
25K15.53 mi2.42 mi4799+1294467+1174467+1174429(Top 17%)4127(Top 27%)4127(Top 78%)
30K18.64 mi3.11 mi4792+74458+94458+94793(Top 18%)4418(Top 29%)4418(Top 84%)
20M20.00 mi1.36 mi4680+1124364+944364+943676(Top 14%)3428(Top 23%)3428(Top 65%)
21M21.00 mi1.00 mi4609+714294+704294+703789(Top 14%)3512(Top 23%)3512(Top 66%)
35K21.75 mi0.75 mi4572+374257+374257+374010(Top 15%)3685(Top 24%)3685(Top 70%)
23M23.00 mi1.25 mi4469+1034167+904167+903378(Top 13%)3131(Top 21%)3131(Top 59%)
24M24.00 mi1.00 mi4337+1324055+1124055+1122589(Top 10%)2417(Top 16%)2417(Top 46%)
40K24.85 mi0.85 mi4261+763982+733982+733043(Top 11%)2801(Top 18%)2801(Top 53%)
25.2M25.20 mi0.35 mi4218+433945+373945+372370(Top 9%)2203(Top 15%)2203(Top 42%)
Finish26.22 mi1.02 mi4128+903863+823863+822079(Top 8%)1934(Top 13%)1934(Top 37%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 17%
×21stories
+97ft-345ft

Overall

4586

Males

4282

M18-39

4282

5K→10K

3.1 - 6.2 mi

Top 18%
×5stories
+79ft-138ft

Overall

4891

Males

4536

M18-39

4536

10K→15K

6.2 - 9.3 mi

Top 17%
×3stories
+67ft-78ft

Overall

4586

Males

4282

M18-39

4282

15K→20K

9.3 - 12.4 mi

Top 18%
×5stories
+106ft-86ft

Overall

4753

Males

4415

M18-39

4415

20K→Half

12.4 - 13.1 mi

Top 17%
×2stories
+19ft-37ft

Overall

4496

Males

4188

M18-39

4188

Half→25K

13.1 - 15.5 mi

Top 17%
×4stories
+66ft-88ft

Overall

4429

Males

4127

M18-39

4127

25K→30K

15.5 - 18.6 mi

Top 18%
×9stories
+181ft-148ft

Overall

4793

Males

4418

M18-39

4418

30K→20M

18.6 - 20.0 mi

Top 14%
×5stories
+64ft-50ft

Overall

3676

Males

3428

M18-39

3428

20M→21M

20.0 - 21.0 mi

Top 14%
×8stories
+106ft-24ft

Overall

3789

Males

3512

M18-39

3512

21M→35K

21.0 - 21.8 mi

Top 15%
×7stories
+17ft-86ft

Overall

4010

Males

3685

M18-39

3685

35K→23M

21.8 - 23.0 mi

Top 13%
×5stories
+23ft-63ft

Overall

3378

Males

3131

M18-39

3131

23M→24M

23.0 - 24.0 mi

Top 10%
×6stories
+12ft-82ft

Overall

2589

Males

2417

M18-39

2417

24M→40K

24.0 - 24.9 mi

Top 11%
×1story
+6ft-20ft

Overall

3043

Males

2801

M18-39

2801

40K→25.2M

24.9 - 25.2 mi

Top 9%
×1story
+13ft-16ft

Overall

2370

Males

2203

M18-39

2203

25.2M→Finish

25.2 - 26.2 mi

Top 8%
×2stories
+22ft-21ft

Overall

2079

Males

1934

M18-39

1934

Passing Analysis

Category:
Athletes Passed
1908
Passed By
461
Net Change
+1447
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#5575
5K → 10K42475+349#5575#5226
10K → 15K23739+198#5226#5028
15K → 20K15064+86#5028#4942
20K → Half2915+14#4942#4928
Half → 25K16132+129#4928#4799
25K → 30K143136+7#4799#4792
30K → 20M12513+112#4792#4680
20M → 21M9221+71#4680#4609
21M → 35K5922+37#4609#4572
35K → 23M12724+103#4572#4469
23M → 24M1331+132#4469#4337
24M → 40K848+76#4337#4261
40K → 25.2M474+43#4261#4218
25.2M → Finish977+90#4218#4128
TOTALS1908461+1447
📊

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