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BOSTON MARATHON 2023

Mark Jepson

Bib: 24301•M

OH

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Male)
#0 / 15176
Masters (Masters Men)
#0 / 9891
Division (M70-74)
#0 / 213
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
9:36/mi
29:48
↑ 97↓ 3451.5%
10K· 6.21 mi
9:54/mi
1:00:33
↑ 79↓ 1380.4%
15K· 9.32 mi
9:50/mi
1:31:07
↑ 67↓ 78
20K· 12.43 mi
9:46/mi
2:01:27
↑ 106↓ 860.1%
Half· 13.11 mi
9:43/mi
2:08:05
↑ 19↓ 370.5%
25K· 15.53 mi
9:59/mi
2:32:17
↑ 66↓ 880.2%
30K· 18.64 mi
10:17/mi
3:04:15
↑ 181↓ 1480.2%
20M
10:37/mi
3:18:41
↑ 64↓ 500.2%
21M
11:22/mi
3:30:03
↑ 106↓ 241.6%
35K· 21.75 mi
10:39/mi
3:38:01
↑ 17↓ 861.7%
23M
11:15/mi
3:52:06
↑ 23↓ 630.6%
24M
11:19/mi
4:03:25
↓ 821.3%
40K· 24.85 mi
12:09/mi
4:13:48
↓ 200.3%
25.2M
13:41/mi
4:18:31
↑ 13↓ 160.2%
Finish· 26.22 mi
12:57/mi
4:31:43
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:08:05
Pace9:46 /mi
2nd Half
Distance13.11 mi
Time2:23:38
Pace10:57 /mi
📊Positive Split: 12.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:45:2029:489:3629:48
9:36
-
10K
6.21 mi12:16:051:00:339:4530:45
9:54
+0:18
15K
9.32 mi12:46:391:31:079:4730:34
9:50
-0:04
20K
12.43 mi13:16:592:01:279:4630:20
9:46
-0:04
Half
13.11 mi13:23:372:08:059:466:38
9:43
-0:03
25K
15.53 mi13:47:492:32:179:4824:12
9:59
+0:16
30K
18.64 mi14:19:473:04:159:5331:58
10:17
+0:18
20M
20.00 mi14:34:133:18:419:5614:26
10:37
+0:20
21M
21.00 mi14:45:353:30:0310:0011:22
11:22
+0:45
35K
21.75 mi14:53:333:38:0110:017:58
10:39
-0:43
23M
23.00 mi15:07:383:52:0610:0514:05
11:15
+0:36
24M
24.00 mi15:18:574:03:2510:0911:19
11:19
+0:04
40K
24.85 mi15:29:204:13:4810:1310:23
12:09
+0:50
25.2M
25.20 mi15:34:034:18:3110:164:43
13:41
+1:32
Finish
26.22 mi15:47:154:31:4310:2213:12
12:57
-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

9:36 /mi

Average Pace

10:22 /mi

Slowest Pace

13:41 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:32:17

56% of race

Time at Steady Pace

54:22

20% of race

Time at Slower Pace

1:05:04

24% of race

Average Pace: 10:22 /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 mi11:45:2029:489:3629:48
9:36
#22354
10K
6.21 mi12:16:051:00:339:4530:45
9:54
#23016
15K
9.32 mi12:46:391:31:079:4730:34
9:50
#23089
20K
12.43 mi13:16:592:01:279:4630:20
9:46
#22856
Half
13.11 mi13:23:372:08:059:466:38
9:43
#22846
25K
15.53 mi13:47:492:32:179:4824:12
9:59
#22727
30K
18.64 mi14:19:473:04:159:5331:58
10:17
#22529
20M
20.00 mi14:34:133:18:419:5614:26
10:37
#22477
21M
21.00 mi14:45:353:30:0310:0011:22
11:22
#22422
35K
21.75 mi14:53:333:38:0110:017:58
10:39
#22431
23M
23.00 mi15:07:383:52:0610:0514:05
11:15
#22467
24M
24.00 mi15:18:574:03:2510:0911:19
11:19
#22520
40K
24.85 mi15:29:204:13:4810:1310:23
12:09
#22603
25.2M
25.20 mi15:34:034:18:3110:164:43
13:41
#22652
Finish
26.22 mi15:47:154:31:4310:2213:12
12:57
#22864
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM70-74Seg. OverallSeg. MalesSeg. M70-74
5K3.11 mi3.11 mi22354132801328023145(Top 87%)13699(Top 90%)13699(Top 6431%)
10K6.21 mi3.10 mi23016-66213622-34213622-34223477(Top 88%)13845(Top 91%)13845(Top 6500%)
15K9.32 mi3.11 mi23089-7313670-4813670-4823145(Top 87%)13699(Top 90%)13699(Top 6431%)
20K12.43 mi3.11 mi22856+23313558+11213558+11222319(Top 84%)13322(Top 88%)13322(Top 6254%)
Half13.11 mi0.68 mi22846+1013559-113559-122688(Top 85%)13488(Top 89%)13488(Top 6332%)
25K15.53 mi2.42 mi22727+11913484+7513484+7522172(Top 83%)13221(Top 87%)13221(Top 6207%)
30K18.64 mi3.11 mi22529+19813364+12013364+12021751(Top 82%)12968(Top 85%)12968(Top 6088%)
20M20.00 mi1.36 mi22477+5213334+3013334+3021985(Top 83%)12994(Top 86%)12994(Top 6100%)
21M21.00 mi1.00 mi22422+5513297+3713297+3721626(Top 81%)12811(Top 84%)12811(Top 6015%)
35K21.75 mi0.75 mi22431-913305-813305-822664(Top 85%)13240(Top 87%)13240(Top 6216%)
23M23.00 mi1.25 mi22467-3613310-513310-522805(Top 86%)13294(Top 88%)13294(Top 6241%)
24M24.00 mi1.00 mi22520-5313323-1313323-1323607(Top 89%)13637(Top 90%)13637(Top 6402%)
40K24.85 mi0.85 mi22603-8313352-2913352-2924054(Top 90%)13829(Top 91%)13829(Top 6492%)
25.2M25.20 mi0.35 mi22652-4913370-1813370-1824688(Top 93%)14130(Top 93%)14130(Top 6634%)
Finish26.22 mi1.02 mi22864-21213460-9013460-9025946(Top 97%)14779(Top 97%)14779(Top 6938%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 87%
×21story building
+97ft-345ft

Overall

23145

Males

13699

M70-74

13699

5K→10K

3.1 - 6.2 mi

Top 88%
×5story building
+79ft-138ft

Overall

23477

Males

13845

M70-74

13845

10K→15K

6.2 - 9.3 mi

Top 87%
×3story building
+67ft-78ft

Overall

23145

Males

13699

M70-74

13699

15K→20K

9.3 - 12.4 mi

Top 84%
×5story building
+106ft-86ft

Overall

22319

Males

13322

M70-74

13322

20K→Half

12.4 - 13.1 mi

Top 85%
×2story building
+19ft-37ft

Overall

22688

Males

13488

M70-74

13488

Half→25K

13.1 - 15.5 mi

Top 83%
×4story building
+66ft-88ft

Overall

22172

Males

13221

M70-74

13221

25K→30K

15.5 - 18.6 mi

Top 82%
×9story building
+181ft-148ft

Overall

21751

Males

12968

M70-74

12968

30K→20M

18.6 - 20.0 mi

Top 83%
×5story building
+64ft-50ft

Overall

21985

Males

12994

M70-74

12994

20M→21M

20.0 - 21.0 mi

Top 81%
×8story building
+106ft-24ft

Overall

21626

Males

12811

M70-74

12811

21M→35K

21.0 - 21.8 mi

Top 85%
×7story building
+17ft-86ft

Overall

22664

Males

13240

M70-74

13240

35K→23M

21.8 - 23.0 mi

Top 86%
×5story building
+23ft-63ft

Overall

22805

Males

13294

M70-74

13294

23M→24M

23.0 - 24.0 mi

Top 89%
×6story building
+12ft-82ft

Overall

23607

Males

13637

M70-74

13637

24M→40K

24.0 - 24.9 mi

Top 90%
×1story
+6ft-20ft

Overall

24054

Males

13829

M70-74

13829

40K→25.2M

24.9 - 25.2 mi

Top 93%
×1story
+13ft-16ft

Overall

24688

Males

14130

M70-74

14130

25.2M→Finish

25.2 - 26.2 mi

Top 97%
×2story building
+22ft-21ft

Overall

25946

Males

14779

M70-74

14779

Passing Analysis

Category:
Athletes Passed
1134
Passed By
1644
Net Change
-510
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#22354
5K → 10K56718-662#22354#23016
10K → 15K110183-73#23016#23089
15K → 20K26633+233#23089#22856
20K → Half3121+10#22856#22846
Half → 25K15334+119#22846#22727
25K → 30K23234+198#22727#22529
30K → 20M7826+52#22529#22477
20M → 21M9136+55#22477#22422
21M → 35K3342-9#22422#22431
35K → 23M4379-36#22431#22467
23M → 24M2073-53#22467#22520
24M → 40K1194-83#22520#22603
40K → 25.2M655-49#22603#22652
25.2M → Finish4216-212#22652#22864
TOTALS11341644-510
📊

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