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BOSTON MARATHON 2023

John Gosling

Bib: 19061•M

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Male)
#0 / 15176
Masters (Masters Men)
#0 / 9891
Division (M55-59)
#0 / 1422
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
25:39
Rank: #15841
Start → 5K
25:39 | 8:15/mi
10K· 6.21 mi
51:04
Rank: #15944 (-103)
5K → 10K
25:25 | 8:11/mi
15K· 9.32 mi
1:16:39
Rank: #15989 (-45)
10K → 15K
25:35 | 8:14/mi
20K· 12.43 mi
1:42:35
Rank: #15943 (+46)
15K → 20K
25:56 | 8:21/mi
Half· 13.11 mi
1:48:14
Rank: #15955 (-12)
20K → Half
5:39 | 8:17/mi
25K· 15.53 mi
2:09:01
Rank: #16068 (-113)
Half → 25K
20:47 | 8:34/mi
30K· 18.64 mi
2:35:58
Rank: #15908 (+160)
25K → 30K
26:57 | 8:40/mi
20M
2:47:54
Rank: #15861 (+47)
30K → 20M
11:56 | 8:47/mi
21M
2:57:07
Rank: #15749 (+112)
20M → 21M
9:13 | 9:13/mi
35K· 21.75 mi
3:03:22
Rank: #15686 (+63)
21M → 35K
6:15 | 8:21/mi
23M
3:14:19
Rank: #15614 (+72)
35K → 23M
10:57 | 8:45/mi
24M
3:22:46
Rank: #15539 (+75)
23M → 24M
8:27 | 8:27/mi
40K· 24.85 mi
3:30:09
Rank: #15489 (+50)
24M → 40K
7:23 | 8:38/mi
25.2M
3:33:09
Rank: #15395 (+94)
40K → 25.2M
3:00 | 8:42/mi
Finish· 26.22 mi
3:41:12
Rank: #15235 (+160)
25.2M → Finish
8:03 | 7:54/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:48:14
Pace8:15 /mi
2nd Half
Distance13.11 mi
Time1:52:58
Pace8:37 /mi
📊Positive Split: 4.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:17:2725:398:1525:39
8:15
-
10K
6.21 mi11:42:5251:048:1325:25
8:11
-0:04
15K
9.32 mi12:08:271:16:398:1325:35
8:14
+0:03
20K
12.43 mi12:34:231:42:358:1525:56
8:21
+0:07
Half
13.11 mi12:40:021:48:148:155:39
8:17
-0:04
25K
15.53 mi13:00:492:09:018:1820:47
8:34
+0:17
30K
18.64 mi13:27:462:35:588:2226:57
8:40
+0:06
20M
20.00 mi13:39:422:47:548:2411:56
8:47
+0:07
21M
21.00 mi13:48:552:57:078:269:13
9:13
+0:26
35K
21.75 mi13:55:103:03:228:266:15
8:21
-0:52
23M
23.00 mi14:06:073:14:198:2710:57
8:45
+0:24
24M
24.00 mi14:14:343:22:468:278:27
8:27
-0:18
40K
24.85 mi14:21:573:30:098:277:23
8:38
+0:11
25.2M
25.20 mi14:24:573:33:098:283:00
8:42
+0:04
Finish
26.22 mi14:33:003:41:128:278:03
7:54
-0:48

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

7:54 /mi

Average Pace

8:27 /mi

Slowest Pace

9:13 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:06:06

84% of race

Time at Steady Pace

35:06

16% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:26 /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 mi11:17:2725:398:1525:39
8:15
#15841
10K
6.21 mi11:42:5251:048:1325:25
8:11
#15944
15K
9.32 mi12:08:271:16:398:1325:35
8:14
#15989
20K
12.43 mi12:34:231:42:358:1525:56
8:21
#15943
Half
13.11 mi12:40:021:48:148:155:39
8:17
#15955
25K
15.53 mi13:00:492:09:018:1820:47
8:34
#16068
30K
18.64 mi13:27:462:35:588:2226:57
8:40
#15908
20M
20.00 mi13:39:422:47:548:2411:56
8:47
#15861
21M
21.00 mi13:48:552:57:078:269:13
9:13
#15749
35K
21.75 mi13:55:103:03:228:266:15
8:21
#15686
23M
23.00 mi14:06:073:14:198:2710:57
8:45
#15614
24M
24.00 mi14:14:343:22:468:278:27
8:27
#15539
40K
24.85 mi14:21:573:30:098:277:23
8:38
#15489
25.2M
25.20 mi14:24:573:33:098:283:00
8:42
#15395
Finish
26.22 mi14:33:003:41:128:278:03
7:54
#15235
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM55-59Seg. OverallSeg. MalesSeg. M55-59
5K3.11 mi3.11 mi15841106441064416098(Top 60%)10726(Top 71%)10726(Top 754%)
10K6.21 mi3.10 mi15944-10310672-2810672-2816106(Top 60%)10746(Top 71%)10746(Top 756%)
15K9.32 mi3.11 mi15989-4510694-2210694-2216098(Top 60%)10726(Top 71%)10726(Top 754%)
20K12.43 mi3.11 mi15943+4610653+4110653+4115915(Top 60%)10598(Top 70%)10598(Top 745%)
Half13.11 mi0.68 mi15955-1210654-110654-116304(Top 61%)10790(Top 71%)10790(Top 759%)
25K15.53 mi2.42 mi16068-11310670-1610670-1616625(Top 62%)10812(Top 71%)10812(Top 760%)
30K18.64 mi3.11 mi15908+16010568+10210568+10215349(Top 58%)10190(Top 67%)10190(Top 717%)
20M20.00 mi1.36 mi15861+4710521+4710521+4715306(Top 57%)10121(Top 67%)10121(Top 712%)
21M21.00 mi1.00 mi15749+11210461+6010461+6014545(Top 55%)9741(Top 64%)9741(Top 685%)
35K21.75 mi0.75 mi15686+6310417+4410417+4414410(Top 54%)9605(Top 63%)9605(Top 675%)
23M23.00 mi1.25 mi15614+7210359+5810359+5814654(Top 55%)9656(Top 64%)9656(Top 679%)
24M24.00 mi1.00 mi15539+7510313+4610313+4614169(Top 53%)9380(Top 62%)9380(Top 660%)
40K24.85 mi0.85 mi15489+5010283+3010283+3014146(Top 53%)9304(Top 61%)9304(Top 654%)
25.2M25.20 mi0.35 mi15395+9410242+4110242+4110748(Top 40%)7705(Top 51%)7705(Top 542%)
Finish26.22 mi1.02 mi15235+16010172+7010172+7011389(Top 43%)7991(Top 53%)7991(Top 562%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 60%
×21stories
+97ft-345ft

Overall

16098

Males

10726

M55-59

10726

5K→10K

3.1 - 6.2 mi

Top 60%
×5stories
+79ft-138ft

Overall

16106

Males

10746

M55-59

10746

10K→15K

6.2 - 9.3 mi

Top 60%
×3stories
+67ft-78ft

Overall

16098

Males

10726

M55-59

10726

15K→20K

9.3 - 12.4 mi

Top 60%
×5stories
+106ft-86ft

Overall

15915

Males

10598

M55-59

10598

20K→Half

12.4 - 13.1 mi

Top 61%
×2stories
+19ft-37ft

Overall

16304

Males

10790

M55-59

10790

Half→25K

13.1 - 15.5 mi

Top 62%
×4stories
+66ft-88ft

Overall

16625

Males

10812

M55-59

10812

25K→30K

15.5 - 18.6 mi

Top 58%
×9stories
+181ft-148ft

Overall

15349

Males

10190

M55-59

10190

30K→20M

18.6 - 20.0 mi

Top 57%
×5stories
+64ft-50ft

Overall

15306

Males

10121

M55-59

10121

20M→21M

20.0 - 21.0 mi

Top 55%
×8stories
+106ft-24ft

Overall

14545

Males

9741

M55-59

9741

21M→35K

21.0 - 21.8 mi

Top 54%
×7stories
+17ft-86ft

Overall

14410

Males

9605

M55-59

9605

35K→23M

21.8 - 23.0 mi

Top 55%
×5stories
+23ft-63ft

Overall

14654

Males

9656

M55-59

9656

23M→24M

23.0 - 24.0 mi

Top 53%
×6stories
+12ft-82ft

Overall

14169

Males

9380

M55-59

9380

24M→40K

24.0 - 24.9 mi

Top 53%
×1story
+6ft-20ft

Overall

14146

Males

9304

M55-59

9304

40K→25.2M

24.9 - 25.2 mi

Top 40%
×1story
+13ft-16ft

Overall

10748

Males

7705

M55-59

7705

25.2M→Finish

25.2 - 26.2 mi

Top 43%
×2stories
+22ft-21ft

Overall

11389

Males

7991

M55-59

7991

Passing Analysis

Category:
Athletes Passed
1903
Passed By
1297
Net Change
+606
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#15841
5K → 10K244347-103#15841#15944
10K → 15K184229-45#15944#15989
15K → 20K181135+46#15989#15943
20K → Half2638-12#15943#15955
Half → 25K111224-113#15955#16068
25K → 30K24989+160#16068#15908
30K → 20M11770+47#15908#15861
20M → 21M15543+112#15861#15749
21M → 35K7512+63#15749#15686
35K → 23M11139+72#15686#15614
23M → 24M10732+75#15614#15539
24M → 40K7121+50#15539#15489
40K → 25.2M973+94#15489#15395
25.2M → Finish17515+160#15395#15235
TOTALS19031297+606
📊

Passing Visuals

Category:
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🔥Passing Intensity

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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