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BOSTON MARATHON 2023

Caleb Jensen

Bib: 9401•M

CA

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 27%
Gender (Male)
#0 / 15176
Top 41%
Masters (Masters Men)
#0 / 9891
Top 27%
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
7:12/mi
22:23
↑ 97↓ 3451.5%
10K· 6.21 mi
7:06/mi
44:28
↑ 79↓ 1380.4%
15K· 9.32 mi
7:11/mi
1:06:47
↑ 67↓ 78
20K· 12.43 mi
7:15/mi
1:29:18
↑ 106↓ 860.1%
Half· 13.11 mi
7:08/mi
1:34:10
↑ 19↓ 370.5%
25K· 15.53 mi
7:16/mi
1:51:47
↑ 66↓ 880.2%
30K· 18.64 mi
7:25/mi
2:14:50
↑ 181↓ 1480.2%
20M
7:30/mi
2:25:02
↑ 64↓ 500.2%
21M
7:59/mi
2:33:01
↑ 106↓ 241.6%
35K· 21.75 mi
7:13/mi
2:38:25
↑ 17↓ 861.7%
23M
7:52/mi
2:48:16
↑ 23↓ 630.6%
24M
7:48/mi
2:56:04
↓ 821.3%
40K· 24.85 mi
7:50/mi
3:02:46
↓ 200.3%
25.2M
7:53/mi
3:05:29
↑ 13↓ 160.2%
Finish· 26.22 mi
7:16/mi
3:12:53
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:34:10
Pace7:11 /mi
2nd Half
Distance13.11 mi
Time1:38:43
Pace7:32 /mi
📊Positive Split: 4.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:48:2322:237:1222:23
7:12
-
10K
6.21 mi11:10:2844:287:0922:05
7:06
-0:06
15K
9.32 mi11:32:471:06:477:1022:19
7:11
+0:05
20K
12.43 mi11:55:181:29:187:1122:31
7:15
+0:04
Half
13.11 mi12:00:101:34:107:114:52
7:08
-0:07
25K
15.53 mi12:17:471:51:477:1217:37
7:16
+0:08
30K
18.64 mi12:40:502:14:507:1423:03
7:25
+0:09
20M
20.00 mi12:51:022:25:027:1510:12
7:30
+0:05
21M
21.00 mi12:59:012:33:017:177:59
7:59
+0:29
35K
21.75 mi13:04:252:38:257:175:24
7:13
-0:46
23M
23.00 mi13:14:162:48:167:199:51
7:52
+0:39
24M
24.00 mi13:22:042:56:047:207:48
7:48
-0:04
40K
24.85 mi13:28:463:02:467:216:42
7:50
+0:02
25.2M
25.20 mi13:31:293:05:297:222:43
7:53
+0:03
Finish
26.22 mi13:38:533:12:537:227:24
7:16
-0:37

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

7:06 /mi

Average Pace

7:22 /mi

Slowest Pace

7:59 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:45:38

86% of race

Time at Steady Pace

27:15

14% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:21 /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 mi10:48:2322:237:1222:23
7:12
#7513
10K
6.21 mi11:10:2844:287:0922:05
7:06
#7457
15K
9.32 mi11:32:471:06:477:1022:19
7:11
#7521
20K
12.43 mi11:55:181:29:187:1122:31
7:15
#7440
Half
13.11 mi12:00:101:34:107:114:52
7:08
#7433
25K
15.53 mi12:17:471:51:477:1217:37
7:16
#7346
30K
18.64 mi12:40:502:14:507:1423:03
7:25
#7185
20M
20.00 mi12:51:022:25:027:1510:12
7:30
#7132
21M
21.00 mi12:59:012:33:017:177:59
7:59
#7091
35K
21.75 mi13:04:252:38:257:175:24
7:13
#7061
23M
23.00 mi13:14:162:48:167:199:51
7:52
#7113
24M
24.00 mi13:22:042:56:047:207:48
7:48
#7199
40K
24.85 mi13:28:463:02:467:216:42
7:50
#7230
25.2M
25.20 mi13:31:293:05:297:222:43
7:53
#7180
Finish
26.22 mi13:38:533:12:537:227:24
7:16
#7117
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM40-44Seg. OverallSeg. MalesSeg. M40-44
5K3.11 mi3.11 mi7513665766577679(Top 29%)6709(Top 44%)6709(Top 299%)
10K6.21 mi3.10 mi7457+566604+536604+537489(Top 28%)6591(Top 43%)6591(Top 294%)
15K9.32 mi3.11 mi7521-646633-296633-297679(Top 29%)6709(Top 44%)6709(Top 299%)
20K12.43 mi3.11 mi7440+816565+686565+687404(Top 28%)6495(Top 43%)6495(Top 290%)
Half13.11 mi0.68 mi7433+76558+76558+77348(Top 28%)6468(Top 43%)6468(Top 289%)
25K15.53 mi2.42 mi7346+876489+696489+697053(Top 26%)6193(Top 41%)6193(Top 276%)
30K18.64 mi3.11 mi7185+1616354+1356354+1356711(Top 25%)5875(Top 39%)5875(Top 262%)
20M20.00 mi1.36 mi7132+536302+526302+526807(Top 26%)5847(Top 39%)5847(Top 261%)
21M21.00 mi1.00 mi7091+416260+426260+427226(Top 27%)6004(Top 40%)6004(Top 268%)
35K21.75 mi0.75 mi7061+306227+336227+336621(Top 25%)5658(Top 37%)5658(Top 252%)
23M23.00 mi1.25 mi7113-526231-46231-48821(Top 33%)6864(Top 45%)6864(Top 306%)
24M24.00 mi1.00 mi7199-866268-376268-379746(Top 37%)7252(Top 48%)7252(Top 324%)
40K24.85 mi0.85 mi7230-316272-46272-48872(Top 33%)6734(Top 44%)6734(Top 300%)
25.2M25.20 mi0.35 mi7180+506231+416231+415805(Top 22%)4825(Top 32%)4825(Top 215%)
Finish26.22 mi1.02 mi7117+636160+716160+716821(Top 26%)5456(Top 36%)5456(Top 243%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 29%
×21story building
+97ft-345ft

Overall

7679

Males

6709

M40-44

6709

5K→10K

3.1 - 6.2 mi

Top 28%
×5story building
+79ft-138ft

Overall

7489

Males

6591

M40-44

6591

10K→15K

6.2 - 9.3 mi

Top 29%
×3story building
+67ft-78ft

Overall

7679

Males

6709

M40-44

6709

15K→20K

9.3 - 12.4 mi

Top 28%
×5story building
+106ft-86ft

Overall

7404

Males

6495

M40-44

6495

20K→Half

12.4 - 13.1 mi

Top 28%
×2story building
+19ft-37ft

Overall

7348

Males

6468

M40-44

6468

Half→25K

13.1 - 15.5 mi

Top 26%
×4story building
+66ft-88ft

Overall

7053

Males

6193

M40-44

6193

25K→30K

15.5 - 18.6 mi

Top 25%
×9story building
+181ft-148ft

Overall

6711

Males

5875

M40-44

5875

30K→20M

18.6 - 20.0 mi

Top 26%
×5story building
+64ft-50ft

Overall

6807

Males

5847

M40-44

5847

20M→21M

20.0 - 21.0 mi

Top 27%
×8story building
+106ft-24ft

Overall

7226

Males

6004

M40-44

6004

21M→35K

21.0 - 21.8 mi

Top 25%
×7story building
+17ft-86ft

Overall

6621

Males

5658

M40-44

5658

35K→23M

21.8 - 23.0 mi

Top 33%
×5story building
+23ft-63ft

Overall

8821

Males

6864

M40-44

6864

23M→24M

23.0 - 24.0 mi

Top 37%
×6story building
+12ft-82ft

Overall

9746

Males

7252

M40-44

7252

24M→40K

24.0 - 24.9 mi

Top 33%
×1story
+6ft-20ft

Overall

8872

Males

6734

M40-44

6734

40K→25.2M

24.9 - 25.2 mi

Top 22%
×1story
+13ft-16ft

Overall

5805

Males

4825

M40-44

4825

25.2M→Finish

25.2 - 26.2 mi

Top 26%
×2story building
+22ft-21ft

Overall

6821

Males

5456

M40-44

5456

Passing Analysis

Category:
Athletes Passed
1389
Passed By
993
Net Change
+396
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#7513
5K → 10K249193+56#7513#7457
10K → 15K105169-64#7457#7521
15K → 20K15170+81#7521#7440
20K → Half2720+7#7440#7433
Half → 25K12538+87#7433#7346
25K → 30K20746+161#7346#7185
30K → 20M8633+53#7185#7132
20M → 21M8544+41#7132#7091
21M → 35K4717+30#7091#7061
35K → 23M76128-52#7061#7113
23M → 24M32118-86#7113#7199
24M → 40K3970-31#7199#7230
40K → 25.2M555+50#7230#7180
25.2M → Finish10542+63#7180#7117
TOTALS1389993+396
📊

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