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BOSTON MARATHON 2023

John Fischer

Bib: 3806•M

MO

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 37%
Gender (Male)
#0 / 15176
Masters (Masters Men)
#0 / 9891
Top 41%
Division (M40-44)
#0 / 2241
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent
Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
5K· 3.11 mi
7:10/mi
22:16
↑ 97↓ 3451.5%
10K· 6.21 mi
7:17/mi
44:54
↑ 79↓ 1380.4%
15K· 9.32 mi
7:17/mi
1:07:33
↑ 67↓ 78
20K· 12.43 mi
7:28/mi
1:30:44
↑ 106↓ 860.1%
Half· 13.11 mi
7:30/mi
1:35:51
↑ 19↓ 370.5%
25K· 15.53 mi
7:46/mi
1:54:41
↑ 66↓ 880.2%
30K· 18.64 mi
8:02/mi
2:19:38
↑ 181↓ 1480.2%
20M
8:25/mi
2:31:05
↑ 64↓ 500.2%
21M
8:25/mi
2:39:30
↑ 106↓ 241.6%
35K· 21.75 mi
8:15/mi
2:45:40
↑ 17↓ 861.7%
23M
8:30/mi
2:56:18
↑ 23↓ 630.6%
24M
8:23/mi
3:04:41
↓ 821.3%
40K· 24.85 mi
8:33/mi
3:12:00
↓ 200.3%
25.2M
8:42/mi
3:15:00
↑ 13↓ 160.2%
Finish· 26.22 mi
7:28/mi
3:22:37
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:35:51
Pace7:19 /mi
2nd Half
Distance13.11 mi
Time1:46:46
Pace8:09 /mi
📊Positive Split: 11.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:24:2822:167:1022:16
7:10
-
10K
6.21 mi10:47:0644:547:1422:38
7:17
+0:07
15K
9.32 mi11:09:451:07:337:1522:39
7:17
0:00
20K
12.43 mi11:32:561:30:447:1823:11
7:28
+0:11
Half
13.11 mi11:38:031:35:517:195:07
7:30
+0:02
25K
15.53 mi11:56:531:54:417:2318:50
7:46
+0:16
30K
18.64 mi12:21:502:19:387:2924:57
8:02
+0:16
20M
20.00 mi12:33:172:31:057:3311:27
8:25
+0:23
21M
21.00 mi12:41:422:39:307:368:25
8:25
0:00
35K
21.75 mi12:47:522:45:407:376:10
8:15
-0:10
23M
23.00 mi12:58:302:56:187:4010:38
8:30
+0:15
24M
24.00 mi13:06:533:04:417:428:23
8:23
-0:07
40K
24.85 mi13:14:123:12:007:437:19
8:33
+0:10
25.2M
25.20 mi13:17:123:15:007:443:00
8:42
+0:09
Finish
26.22 mi13:24:493:22:377:447:37
7:28
-1:14

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

7:10 /mi

Average Pace

7:44 /mi

Slowest Pace

8:42 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:02:18

60% of race

Time at Steady Pace

31:07

15% of race

Time at Slower Pace

49:12

24% of race

Average Pace: 7:44 /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 mi10:24:2822:167:1022:16
7:10
#7313
10K
6.21 mi10:47:0644:547:1422:38
7:17
#7938
15K
9.32 mi11:09:451:07:337:1522:39
7:17
#8097
20K
12.43 mi11:32:561:30:447:1823:11
7:28
#8258
Half
13.11 mi11:38:031:35:517:195:07
7:30
#8353
25K
15.53 mi11:56:531:54:417:2318:50
7:46
#8693
30K
18.64 mi12:21:502:19:387:2924:57
8:02
#9087
20M
20.00 mi12:33:172:31:057:3311:27
8:25
#9391
21M
21.00 mi12:41:422:39:307:368:25
8:25
#9387
35K
21.75 mi12:47:522:45:407:376:10
8:15
#9542
23M
23.00 mi12:58:302:56:187:4010:38
8:30
#9727
24M
24.00 mi13:06:533:04:417:428:23
8:23
#9893
40K
24.85 mi13:14:123:12:007:437:19
8:33
#10033
25.2M
25.20 mi13:17:123:15:007:443:00
8:42
#10026
Finish
26.22 mi13:24:493:22:377:447:37
7:28
#9925
Faster pace
Steady pace
Slower pace
Est.Checkpoint not recorded (estimated)
~Segment time uses estimated prior

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM40-44Seg. OverallSeg. MalesSeg. M40-44
5K3.11 mi3.11 mi7313651165118478(Top 32%)7228(Top 48%)7228(Top 323%)
10K6.21 mi3.10 mi7938-6256935-4246935-4248759(Top 33%)7425(Top 49%)7425(Top 331%)
15K9.32 mi3.11 mi8097-1597015-807015-808478(Top 32%)7228(Top 48%)7228(Top 323%)
20K12.43 mi3.11 mi8258-1617107-927107-929006(Top 34%)7508(Top 49%)7508(Top 335%)
Half13.11 mi0.68 mi8353-957163-567163-5610189(Top 38%)8201(Top 54%)8201(Top 366%)
25K15.53 mi2.42 mi8693-3407351-1887351-18810827(Top 41%)8407(Top 55%)8407(Top 375%)
30K18.64 mi3.11 mi9087-3947559-2087559-20811127(Top 42%)8405(Top 55%)8405(Top 375%)
20M20.00 mi1.36 mi9391-3047709-1507709-15013133(Top 49%)9178(Top 60%)9178(Top 410%)
21M21.00 mi1.00 mi9387+47689+207689+2010017(Top 38%)7597(Top 50%)7597(Top 339%)
35K21.75 mi0.75 mi9542-1557770-817770-8113683(Top 51%)9256(Top 61%)9256(Top 413%)
23M23.00 mi1.25 mi9727-1857839-697839-6913139(Top 49%)8972(Top 59%)8972(Top 400%)
24M24.00 mi1.00 mi9893-1667899-607899-6013718(Top 52%)9177(Top 60%)9177(Top 410%)
40K24.85 mi0.85 mi10033-1407946-477946-4713656(Top 51%)9076(Top 60%)9076(Top 405%)
25.2M25.20 mi0.35 mi10026+77925+217925+2110693(Top 40%)7650(Top 50%)7650(Top 341%)
Finish26.22 mi1.02 mi9925+1017851+747851+748364(Top 31%)6380(Top 42%)6380(Top 285%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 32%
×21story building
+97ft-345ft

Overall

8478

Males

7228

M40-44

7228

5K→10K

3.1 - 6.2 mi

Top 33%
×5story building
+79ft-138ft

Overall

8759

Males

7425

M40-44

7425

10K→15K

6.2 - 9.3 mi

Top 32%
×3story building
+67ft-78ft

Overall

8478

Males

7228

M40-44

7228

15K→20K

9.3 - 12.4 mi

Top 34%
×5story building
+106ft-86ft

Overall

9006

Males

7508

M40-44

7508

20K→Half

12.4 - 13.1 mi

Top 38%
×2story building
+19ft-37ft

Overall

10189

Males

8201

M40-44

8201

Half→25K

13.1 - 15.5 mi

Top 41%
×4story building
+66ft-88ft

Overall

10827

Males

8407

M40-44

8407

25K→30K

15.5 - 18.6 mi

Top 42%
×9story building
+181ft-148ft

Overall

11127

Males

8405

M40-44

8405

30K→20M

18.6 - 20.0 mi

Top 49%
×5story building
+64ft-50ft

Overall

13133

Males

9178

M40-44

9178

20M→21M

20.0 - 21.0 mi

Top 38%
×8story building
+106ft-24ft

Overall

10017

Males

7597

M40-44

7597

21M→35K

21.0 - 21.8 mi

Top 51%
×7story building
+17ft-86ft

Overall

13683

Males

9256

M40-44

9256

35K→23M

21.8 - 23.0 mi

Top 49%
×5story building
+23ft-63ft

Overall

13139

Males

8972

M40-44

8972

23M→24M

23.0 - 24.0 mi

Top 52%
×6story building
+12ft-82ft

Overall

13718

Males

9177

M40-44

9177

24M→40K

24.0 - 24.9 mi

Top 51%
×1story
+6ft-20ft

Overall

13656

Males

9076

M40-44

9076

40K→25.2M

24.9 - 25.2 mi

Top 40%
×1story
+13ft-16ft

Overall

10693

Males

7650

M40-44

7650

25.2M→Finish

25.2 - 26.2 mi

Top 31%
×2story building
+22ft-21ft

Overall

8364

Males

6380

M40-44

6380

Passing Analysis

Category:
Athletes Passed
729*
Passed By
3339
Net Change
-2612
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#7313
5K → 10K52677-625#7313#7938
10K → 15K78237-159#7938#8097
15K → 20K75236-161#8097#8258
20K → Half499-95#8258#8353
Half → 25K29369-340#8353#8693
25K → 30K79473-394#8693#9087
30K → 20M23327-304#9087#9391
20M → 21M9187+4#9391#9387
21M → 35K17172-155#9387#9542
35K → 23M44229-185#9542#9727
23M → 24M30195-166#9727#9893
24M → 40K28167-140#9893#10033
40K → 25.2M40*33+7#10033#10026
25.2M → Finish139*38+101#10026#9925
TOTALS729*3339-2612

* Includes athletes who did not complete a segment (DNF/DNQ).

📊

Passing Visuals

Category:
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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