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BOSTON MARATHON 2023

Jason Bamert

Bib: 12687•M

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 36%
Gender (Male)
#0 / 15176
Masters (Masters Men)
#0 / 9891
Top 39%
Division (M50-54)
#0 / 2052
Top 37%
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
7:36/mi
23:36
↑ 97↓ 3451.5%
10K· 6.21 mi
7:30/mi
46:54
↑ 79↓ 1380.4%
15K· 9.32 mi
7:38/mi
1:10:36
↑ 67↓ 78
20K· 12.43 mi
7:52/mi
1:35:02
↑ 106↓ 860.1%
Half· 13.11 mi
7:27/mi
1:40:07
↑ 19↓ 370.5%
25K· 15.53 mi
7:32/mi
1:58:23
↑ 66↓ 880.2%
30K· 18.64 mi
7:47/mi
2:22:33
↑ 181↓ 1480.2%
20M
7:38/mi
2:32:56
↑ 64↓ 500.2%
21M
8:00/mi
2:40:56
↑ 106↓ 241.6%
35K· 21.75 mi
7:28/mi
2:46:31
↑ 17↓ 861.7%
23M
7:45/mi
2:56:13
↑ 23↓ 630.6%
24M
7:33/mi
3:03:46
↓ 821.3%
40K· 24.85 mi
7:50/mi
3:10:28
↓ 200.3%
25.2M
8:27/mi
3:13:23
↑ 13↓ 160.2%
Finish· 26.22 mi
7:52/mi
3:21:24
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:40:07
Pace7:38 /mi
2nd Half
Distance13.11 mi
Time1:41:17
Pace7:44 /mi
📊Positive Split: 1.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:51:0023:367:3623:36
7:36
-
10K
6.21 mi11:14:1846:547:3323:18
7:30
-0:06
15K
9.32 mi11:38:001:10:367:3423:42
7:38
+0:08
20K
12.43 mi12:02:261:35:027:3924:26
7:52
+0:14
Half
13.11 mi12:07:311:40:077:385:05
7:27
-0:25
25K
15.53 mi12:25:471:58:237:3718:16
7:32
+0:05
30K
18.64 mi12:49:572:22:337:3924:10
7:47
+0:15
20M
20.00 mi13:00:202:32:567:3910:23
7:38
-0:09
21M
21.00 mi13:08:202:40:567:408:00
8:00
+0:22
35K
21.75 mi13:13:552:46:317:395:35
7:28
-0:32
23M
23.00 mi13:23:372:56:137:409:42
7:45
+0:17
24M
24.00 mi13:31:103:03:467:397:33
7:33
-0:12
40K
24.85 mi13:37:523:10:287:406:42
7:50
+0:17
25.2M
25.20 mi13:40:473:13:237:402:55
8:27
+0:37
Finish
26.22 mi13:48:483:21:247:418:01
7:52
-0:35

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

7:27 /mi

Average Pace

7:41 /mi

Slowest Pace

8:27 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:18:29

99% of race

Time at Steady Pace

2:55

1% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:41 /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 mi10:51:0023:367:3623:36
7:36
#10480
10K
6.21 mi11:14:1846:547:3323:18
7:30
#10444
15K
9.32 mi11:38:001:10:367:3423:42
7:38
#10701
20K
12.43 mi12:02:261:35:027:3924:26
7:52
#11081
Half
13.11 mi12:07:311:40:077:385:05
7:27
#11007
25K
15.53 mi12:25:471:58:237:3718:16
7:32
#10657
30K
18.64 mi12:49:572:22:337:3924:10
7:47
#10334
20M
20.00 mi13:00:202:32:567:3910:23
7:38
#10132
21M
21.00 mi13:08:202:40:567:408:00
8:00
#9915
35K
21.75 mi13:13:552:46:317:395:35
7:28
#9847
23M
23.00 mi13:23:372:56:137:409:42
7:45
#9698
24M
24.00 mi13:31:103:03:467:397:33
7:33
#9597
40K
24.85 mi13:37:523:10:287:406:42
7:50
#9533
25.2M
25.20 mi13:40:473:13:237:402:55
8:27
#9510
Finish
26.22 mi13:48:483:21:247:418:01
7:52
#9554
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
5K3.11 mi3.11 mi104808392839211230(Top 42%)8737(Top 58%)8737(Top 426%)
10K6.21 mi3.10 mi10444+368385+78385+710429(Top 39%)8397(Top 55%)8397(Top 409%)
15K9.32 mi3.11 mi10701-2578517-1328517-13211230(Top 42%)8737(Top 58%)8737(Top 426%)
20K12.43 mi3.11 mi11081-3808693-1768693-17612265(Top 46%)9128(Top 60%)9128(Top 445%)
Half13.11 mi0.68 mi11007+748656+378656+379768(Top 37%)7961(Top 52%)7961(Top 388%)
25K15.53 mi2.42 mi10657+3508464+1928464+1929022(Top 34%)7451(Top 49%)7451(Top 363%)
30K18.64 mi3.11 mi10334+3238250+2148250+2149192(Top 35%)7385(Top 49%)7385(Top 360%)
20M20.00 mi1.36 mi10132+2028128+1228128+1227766(Top 29%)6451(Top 43%)6451(Top 314%)
21M21.00 mi1.00 mi9915+2177993+1357993+1357349(Top 28%)6094(Top 40%)6094(Top 297%)
35K21.75 mi0.75 mi9847+687939+547939+548264(Top 31%)6665(Top 44%)6665(Top 325%)
23M23.00 mi1.25 mi9698+1497826+1137826+1138041(Top 30%)6440(Top 42%)6440(Top 314%)
24M24.00 mi1.00 mi9597+1017744+827744+828039(Top 30%)6347(Top 42%)6347(Top 309%)
40K24.85 mi0.85 mi9533+647680+647680+648894(Top 33%)6756(Top 45%)6756(Top 329%)
25.2M25.20 mi0.35 mi9510+237655+257655+259200(Top 35%)6860(Top 45%)6860(Top 334%)
Finish26.22 mi1.02 mi9554-447651+47651+411121(Top 42%)7845(Top 52%)7845(Top 382%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 42%
×21story building
+97ft-345ft

Overall

11230

Males

8737

M50-54

8737

5K→10K

3.1 - 6.2 mi

Top 39%
×5story building
+79ft-138ft

Overall

10429

Males

8397

M50-54

8397

10K→15K

6.2 - 9.3 mi

Top 42%
×3story building
+67ft-78ft

Overall

11230

Males

8737

M50-54

8737

15K→20K

9.3 - 12.4 mi

Top 46%
×5story building
+106ft-86ft

Overall

12265

Males

9128

M50-54

9128

20K→Half

12.4 - 13.1 mi

Top 37%
×2story building
+19ft-37ft

Overall

9768

Males

7961

M50-54

7961

Half→25K

13.1 - 15.5 mi

Top 34%
×4story building
+66ft-88ft

Overall

9022

Males

7451

M50-54

7451

25K→30K

15.5 - 18.6 mi

Top 35%
×9story building
+181ft-148ft

Overall

9192

Males

7385

M50-54

7385

30K→20M

18.6 - 20.0 mi

Top 29%
×5story building
+64ft-50ft

Overall

7766

Males

6451

M50-54

6451

20M→21M

20.0 - 21.0 mi

Top 28%
×8story building
+106ft-24ft

Overall

7349

Males

6094

M50-54

6094

21M→35K

21.0 - 21.8 mi

Top 31%
×7story building
+17ft-86ft

Overall

8264

Males

6665

M50-54

6665

35K→23M

21.8 - 23.0 mi

Top 30%
×5story building
+23ft-63ft

Overall

8041

Males

6440

M50-54

6440

23M→24M

23.0 - 24.0 mi

Top 30%
×6story building
+12ft-82ft

Overall

8039

Males

6347

M50-54

6347

24M→40K

24.0 - 24.9 mi

Top 33%
×1story
+6ft-20ft

Overall

8894

Males

6756

M50-54

6756

40K→25.2M

24.9 - 25.2 mi

Top 35%
×1story
+13ft-16ft

Overall

9200

Males

6860

M50-54

6860

25.2M→Finish

25.2 - 26.2 mi

Top 42%
×2story building
+22ft-21ft

Overall

11121

Males

7845

M50-54

7845

Passing Analysis

Category:
Athletes Passed
2250*
Passed By
1324
Net Change
+926
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#10480
5K → 10K309*273+36#10480#10444
10K → 15K101358-257#10444#10701
15K → 20K66446-380#10701#11081
20K → Half784+74#11081#11007
Half → 25K3544+350#11007#10657
25K → 30K36340+323#10657#10334
30K → 20M206*4+202#10334#10132
20M → 21M227*10+217#10132#9915
21M → 35K7911+68#9915#9847
35K → 23M17122+149#9847#9698
23M → 24M11817+101#9698#9597
24M → 40K88*24+64#9597#9533
40K → 25.2M3714+23#9533#9510
25.2M → Finish5397-44#9510#9554
TOTALS2250*1324+926

* 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