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BOSTON MARATHON 2023

Garth Jensen

Bib: 18506•M

CO

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 49%
Gender (Male)
#0 / 15176
Masters (Masters Men)
#0 / 9891
Division (M55-59)
#0 / 1422
Top 43%
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
7:56/mi
24:40
↑ 97↓ 3451.5%
10K· 6.21 mi
7:45/mi
48:45
↑ 79↓ 1380.4%
15K· 9.32 mi
7:38/mi
1:12:28
↑ 67↓ 78
20K· 12.43 mi
7:43/mi
1:36:25
↑ 106↓ 860.1%
Half· 13.11 mi
7:34/mi
1:41:35
↑ 19↓ 370.5%
25K· 15.53 mi
7:51/mi
2:00:36
↑ 66↓ 880.2%
30K· 18.64 mi
8:02/mi
2:25:32
↑ 181↓ 1480.2%
20M
8:14/mi
2:36:43
↑ 64↓ 500.2%
21M
9:09/mi
2:45:52
↑ 106↓ 241.6%
35K· 21.75 mi
8:39/mi
2:52:20
↑ 17↓ 861.7%
23M
8:43/mi
3:03:15
↑ 23↓ 630.6%
24M
8:49/mi
3:12:04
↓ 821.3%
40K· 24.85 mi
9:19/mi
3:20:02
↓ 200.3%
25.2M
10:21/mi
3:23:36
↑ 13↓ 160.2%
Finish· 26.22 mi
9:39/mi
3:33:26
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:41:35
Pace7:45 /mi
2nd Half
Distance13.11 mi
Time1:51:51
Pace8:32 /mi
📊Positive Split: 10.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:15:5024:407:5624:40
7:56
-
10K
6.21 mi11:39:5548:457:5124:05
7:45
-0:11
15K
9.32 mi12:03:381:12:287:4623:43
7:38
-0:07
20K
12.43 mi12:27:351:36:257:4623:57
7:43
+0:05
Half
13.11 mi12:32:451:41:357:455:10
7:34
-0:09
25K
15.53 mi12:51:462:00:367:4619:01
7:51
+0:17
30K
18.64 mi13:16:422:25:327:4824:56
8:02
+0:11
20M
20.00 mi13:27:532:36:437:5011:11
8:14
+0:12
21M
21.00 mi13:37:022:45:527:549:09
9:09
+0:55
35K
21.75 mi13:43:302:52:207:556:28
8:39
-0:30
23M
23.00 mi13:54:253:03:157:5810:55
8:43
+0:04
24M
24.00 mi14:03:143:12:048:008:49
8:49
+0:06
40K
24.85 mi14:11:123:20:028:037:58
9:19
+0:30
25.2M
25.20 mi14:14:463:23:368:053:34
10:21
+1:02
Finish
26.22 mi14:24:363:33:268:099:50
9:39
-0:42

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

7:34 /mi

Average Pace

8:09 /mi

Slowest Pace

10:21 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:16:55

36% of race

Time at Steady Pace

1:19:48

37% of race

Time at Slower Pace

56:43

27% of race

Average Pace: 8:08 /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 mi11:15:5024:407:5624:40
7:56
#13571
10K
6.21 mi11:39:5548:457:5124:05
7:45
#13150
15K
9.32 mi12:03:381:12:287:4623:43
7:38
#12457
20K
12.43 mi12:27:351:36:257:4623:57
7:43
#12032
Half
13.11 mi12:32:451:41:357:455:10
7:34
#11979
25K
15.53 mi12:51:462:00:367:4619:01
7:51
#11833
30K
18.64 mi13:16:422:25:327:4824:56
8:02
#11674
20M
20.00 mi13:27:532:36:437:5011:11
8:14
#11675
21M
21.00 mi13:37:022:45:527:549:09
9:09
#11847
35K
21.75 mi13:43:302:52:207:556:28
8:39
#12021
23M
23.00 mi13:54:253:03:157:5810:55
8:43
#12201
24M
24.00 mi14:03:143:12:048:008:49
8:49
#12396
40K
24.85 mi14:11:123:20:028:037:58
9:19
#12653
25.2M
25.20 mi14:14:463:23:368:053:34
10:21
#12782
Finish
26.22 mi14:24:363:33:268:099:50
9:39
#13174
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM55-59Seg. OverallSeg. MalesSeg. M55-59
5K3.11 mi3.11 mi135719791979111294(Top 42%)8769(Top 58%)8769(Top 617%)
10K6.21 mi3.10 mi13150+4219596+1959596+19512687(Top 48%)9421(Top 62%)9421(Top 663%)
15K9.32 mi3.11 mi12457+6939292+3049292+30411294(Top 42%)8769(Top 58%)8769(Top 617%)
20K12.43 mi3.11 mi12032+4259087+2059087+20510984(Top 41%)8574(Top 56%)8574(Top 603%)
Half13.11 mi0.68 mi11979+539058+299058+2910803(Top 41%)8529(Top 56%)8529(Top 600%)
25K15.53 mi2.42 mi11833+1468985+738985+7311447(Top 43%)8695(Top 57%)8695(Top 611%)
30K18.64 mi3.11 mi11674+1598866+1198866+11911106(Top 42%)8399(Top 55%)8399(Top 591%)
20M20.00 mi1.36 mi11675-18847+198847+1911879(Top 45%)8664(Top 57%)8664(Top 609%)
21M21.00 mi1.00 mi11847-1728901-548901-5414182(Top 53%)9578(Top 63%)9578(Top 674%)
35K21.75 mi0.75 mi12021-1748967-668967-6616053(Top 60%)10303(Top 68%)10303(Top 725%)
23M23.00 mi1.25 mi12201-1809016-499016-4914470(Top 54%)9558(Top 63%)9558(Top 672%)
24M24.00 mi1.00 mi12396-1959088-729088-7216255(Top 61%)10279(Top 68%)10279(Top 723%)
40K24.85 mi0.85 mi12653-2579172-849172-8417568(Top 66%)10823(Top 71%)10823(Top 761%)
25.2M25.20 mi0.35 mi12782-1299218-469218-4618553(Top 70%)11262(Top 74%)11262(Top 792%)
Finish26.22 mi1.02 mi13174-3929355-1379355-13720611(Top 77%)12230(Top 81%)12230(Top 860%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 42%
×21story building
+97ft-345ft

Overall

11294

Males

8769

M55-59

8769

5K→10K

3.1 - 6.2 mi

Top 48%
×5story building
+79ft-138ft

Overall

12687

Males

9421

M55-59

9421

10K→15K

6.2 - 9.3 mi

Top 42%
×3story building
+67ft-78ft

Overall

11294

Males

8769

M55-59

8769

15K→20K

9.3 - 12.4 mi

Top 41%
×5story building
+106ft-86ft

Overall

10984

Males

8574

M55-59

8574

20K→Half

12.4 - 13.1 mi

Top 41%
×2story building
+19ft-37ft

Overall

10803

Males

8529

M55-59

8529

Half→25K

13.1 - 15.5 mi

Top 43%
×4story building
+66ft-88ft

Overall

11447

Males

8695

M55-59

8695

25K→30K

15.5 - 18.6 mi

Top 42%
×9story building
+181ft-148ft

Overall

11106

Males

8399

M55-59

8399

30K→20M

18.6 - 20.0 mi

Top 45%
×5story building
+64ft-50ft

Overall

11879

Males

8664

M55-59

8664

20M→21M

20.0 - 21.0 mi

Top 53%
×8story building
+106ft-24ft

Overall

14182

Males

9578

M55-59

9578

21M→35K

21.0 - 21.8 mi

Top 60%
×7story building
+17ft-86ft

Overall

16053

Males

10303

M55-59

10303

35K→23M

21.8 - 23.0 mi

Top 54%
×5story building
+23ft-63ft

Overall

14470

Males

9558

M55-59

9558

23M→24M

23.0 - 24.0 mi

Top 61%
×6story building
+12ft-82ft

Overall

16255

Males

10279

M55-59

10279

24M→40K

24.0 - 24.9 mi

Top 66%
×1story
+6ft-20ft

Overall

17568

Males

10823

M55-59

10823

40K→25.2M

24.9 - 25.2 mi

Top 70%
×1story
+13ft-16ft

Overall

18553

Males

11262

M55-59

11262

25.2M→Finish

25.2 - 26.2 mi

Top 77%
×2story building
+22ft-21ft

Overall

20611

Males

12230

M55-59

12230

Passing Analysis

Category:
Athletes Passed
2526
Passed By
2129
Net Change
+397
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#13571
5K → 10K566145+421#13571#13150
10K → 15K72734+693#13150#12457
15K → 20K45328+425#12457#12032
20K → Half607+53#12032#11979
Half → 25K21064+146#11979#11833
25K → 30K25899+159#11833#11674
30K → 20M103104-1#11674#11675
20M → 21M38210-172#11675#11847
21M → 35K17191-174#11847#12021
35K → 23M42222-180#12021#12201
23M → 24M21216-195#12201#12396
24M → 40K15272-257#12396#12653
40K → 25.2M8137-129#12653#12782
25.2M → Finish8400-392#12782#13174
TOTALS25262129+397
📊

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