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BOSTON MARATHON 2023

Jon Bartlett

Bib: 25934•M

MA

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Male)
#0 / 15176
Masters (Masters Men)
#0 / 9891
Division (M50-54)
#0 / 2052
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
9:23/mi
29:08
↑ 97↓ 3451.5%
10K· 6.21 mi
9:34/mi
58:52
↑ 79↓ 1380.4%
15K· 9.32 mi
9:41/mi
1:28:57
↑ 67↓ 78
20K· 12.43 mi
10:18/mi
2:00:56
↑ 106↓ 860.1%
Half· 13.11 mi
10:10/mi
2:07:52
↑ 19↓ 370.5%
25K· 15.53 mi
10:59/mi
2:34:30
↑ 66↓ 880.2%
30K· 18.64 mi
12:03/mi
3:11:55
↑ 181↓ 1480.2%
20M
12:15/mi
3:28:34
↑ 64↓ 500.2%
21M
13:48/mi
3:42:22
↑ 106↓ 241.6%
35K· 21.75 mi
12:27/mi
3:51:41
↑ 17↓ 861.7%
23M
12:59/mi
4:07:56
↑ 23↓ 630.6%
24M
12:43/mi
4:20:39
↓ 821.3%
40K· 24.85 mi
13:46/mi
4:32:25
↓ 200.3%
25.2M
15:54/mi
4:37:54
↑ 13↓ 160.2%
Finish· 26.22 mi
13:33/mi
4:51:42
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:07:52
Pace9:45 /mi
2nd Half
Distance13.11 mi
Time2:43:50
Pace12:30 /mi
📊Positive Split: 28.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:45:0129:089:2329:08
9:23
-
10K
6.21 mi12:14:4558:529:2829:44
9:34
+0:11
15K
9.32 mi12:44:501:28:579:3330:05
9:41
+0:07
20K
12.43 mi13:16:492:00:569:4431:59
10:18
+0:37
Half
13.11 mi13:23:452:07:529:456:56
10:10
-0:08
25K
15.53 mi13:50:232:34:309:5726:38
10:59
+0:49
30K
18.64 mi14:27:483:11:5510:1837:25
12:03
+1:04
20M
20.00 mi14:44:273:28:3410:2616:39
12:15
+0:12
21M
21.00 mi14:58:153:42:2210:3513:48
13:48
+1:33
35K
21.75 mi15:07:343:51:4110:399:19
12:27
-1:21
23M
23.00 mi15:23:494:07:5610:4716:15
12:59
+0:32
24M
24.00 mi15:36:324:20:3910:5212:43
12:43
-0:16
40K
24.85 mi15:48:184:32:2510:5811:46
13:46
+1:03
25.2M
25.20 mi15:53:474:37:5411:025:29
15:54
+2:08
Finish
26.22 mi16:07:354:51:4211:0813:48
13:33
-2:21

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

9:23 /mi

Average Pace

11:08 /mi

Slowest Pace

15:54 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:34:30

53% of race

Time at Steady Pace

1:32:21

32% of race

Time at Slower Pace

44:51

15% of race

Average Pace: 11:08 /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 mi11:45:0129:089:2329:08
9:23
#21747
10K
6.21 mi12:14:4558:529:2829:44
9:34
#22259
15K
9.32 mi12:44:501:28:579:3330:05
9:41
#22432
20K
12.43 mi13:16:492:00:569:4431:59
10:18
#22750
Half
13.11 mi13:23:452:07:529:456:56
10:10
#22804
25K
15.53 mi13:50:232:34:309:5726:38
10:59
#23060
30K
18.64 mi14:27:483:11:5510:1837:25
12:03
#23433
20M
20.00 mi14:44:273:28:3410:2616:39
12:15
#23526
21M
21.00 mi14:58:153:42:2210:3513:48
13:48
#23640
35K
21.75 mi15:07:343:51:4110:399:19
12:27
#23738
23M
23.00 mi15:23:494:07:5610:4716:15
12:59
#23876
24M
24.00 mi15:36:324:20:3910:5212:43
12:43
#23966
40K
24.85 mi15:48:184:32:2510:5811:46
13:46
#24050
25.2M
25.20 mi15:53:474:37:5411:025:29
15:54
#24108
Finish
26.22 mi16:07:354:51:4211:0813:48
13:33
#24289
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
5K3.11 mi3.11 mi21747129641296422760(Top 85%)13526(Top 89%)13526(Top 659%)
10K6.21 mi3.10 mi22259-51213258-29413258-29422710(Top 85%)13495(Top 89%)13495(Top 658%)
15K9.32 mi3.11 mi22432-17313353-9513353-9522760(Top 85%)13526(Top 89%)13526(Top 659%)
20K12.43 mi3.11 mi22750-31813515-16213515-16223457(Top 88%)13836(Top 91%)13836(Top 674%)
Half13.11 mi0.68 mi22804-5413539-2413539-2423597(Top 89%)13897(Top 92%)13897(Top 677%)
25K15.53 mi2.42 mi23060-25613649-11013649-11023952(Top 90%)14000(Top 92%)14000(Top 682%)
30K18.64 mi3.11 mi23433-37313806-15713806-15724549(Top 92%)14220(Top 94%)14220(Top 693%)
20M20.00 mi1.36 mi23526-9313831-2513831-2524493(Top 92%)14139(Top 93%)14139(Top 689%)
21M21.00 mi1.00 mi23640-11413880-4913880-4924858(Top 93%)14302(Top 94%)14302(Top 697%)
35K21.75 mi0.75 mi23738-9813922-4213922-4225121(Top 94%)14384(Top 95%)14384(Top 701%)
23M23.00 mi1.25 mi23876-13813970-4813970-4825055(Top 94%)14370(Top 95%)14370(Top 700%)
24M24.00 mi1.00 mi23966-9013998-2813998-2825250(Top 95%)14426(Top 95%)14426(Top 703%)
40K24.85 mi0.85 mi24050-8414025-2714025-2725537(Top 96%)14568(Top 96%)14568(Top 710%)
25.2M25.20 mi0.35 mi24108-5814042-1714042-1726085(Top 98%)14858(Top 98%)14858(Top 724%)
Finish26.22 mi1.02 mi24289-18114127-8514127-8526209(Top 98%)14915(Top 98%)14915(Top 727%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 85%
×21story building
+97ft-345ft

Overall

22760

Males

13526

M50-54

13526

5K→10K

3.1 - 6.2 mi

Top 85%
×5story building
+79ft-138ft

Overall

22710

Males

13495

M50-54

13495

10K→15K

6.2 - 9.3 mi

Top 85%
×3story building
+67ft-78ft

Overall

22760

Males

13526

M50-54

13526

15K→20K

9.3 - 12.4 mi

Top 88%
×5story building
+106ft-86ft

Overall

23457

Males

13836

M50-54

13836

20K→Half

12.4 - 13.1 mi

Top 89%
×2story building
+19ft-37ft

Overall

23597

Males

13897

M50-54

13897

Half→25K

13.1 - 15.5 mi

Top 90%
×4story building
+66ft-88ft

Overall

23952

Males

14000

M50-54

14000

25K→30K

15.5 - 18.6 mi

Top 92%
×9story building
+181ft-148ft

Overall

24549

Males

14220

M50-54

14220

30K→20M

18.6 - 20.0 mi

Top 92%
×5story building
+64ft-50ft

Overall

24493

Males

14139

M50-54

14139

20M→21M

20.0 - 21.0 mi

Top 93%
×8story building
+106ft-24ft

Overall

24858

Males

14302

M50-54

14302

21M→35K

21.0 - 21.8 mi

Top 94%
×7story building
+17ft-86ft

Overall

25121

Males

14384

M50-54

14384

35K→23M

21.8 - 23.0 mi

Top 94%
×5story building
+23ft-63ft

Overall

25055

Males

14370

M50-54

14370

23M→24M

23.0 - 24.0 mi

Top 95%
×6story building
+12ft-82ft

Overall

25250

Males

14426

M50-54

14426

24M→40K

24.0 - 24.9 mi

Top 96%
×1story
+6ft-20ft

Overall

25537

Males

14568

M50-54

14568

40K→25.2M

24.9 - 25.2 mi

Top 98%
×1story
+13ft-16ft

Overall

26085

Males

14858

M50-54

14858

25.2M→Finish

25.2 - 26.2 mi

Top 98%
×2story building
+22ft-21ft

Overall

26209

Males

14915

M50-54

14915

Passing Analysis

Category:
Athletes Passed
375
Passed By
2917
Net Change
-2542
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#21747
5K → 10K81593-512#21747#22259
10K → 15K101274-173#22259#22432
15K → 20K49367-318#22432#22750
20K → Half1468-54#22750#22804
Half → 25K29285-256#22804#23060
25K → 30K32405-373#23060#23433
30K → 20M26119-93#23433#23526
20M → 21M11125-114#23526#23640
21M → 35K2100-98#23640#23738
35K → 23M10148-138#23738#23876
23M → 24M999-90#23876#23966
24M → 40K1094-84#23966#24050
40K → 25.2M058-58#24050#24108
25.2M → Finish1182-181#24108#24289
TOTALS3752917-2542
📊

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