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BOSTON MARATHON 2023

Thomas Kearns

Bib: 17448•M

MD

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
25:24
Rank: #15261
Start → 5K
25:24 | 8:11/mi
10K· 6.21 mi
50:37
Rank: #15430 (-169)
5K → 10K
25:13 | 8:07/mi
15K· 9.32 mi
1:15:42
Rank: #15264 (+166)
10K → 15K
25:05 | 8:04/mi
20K· 12.43 mi
1:41:32
Rank: #15372 (-108)
15K → 20K
25:50 | 8:19/mi
Half· 13.11 mi
1:47:07
Rank: #15389 (-17)
20K → Half
5:35 | 8:11/mi
25K· 15.53 mi
2:06:59
Rank: #15162 (+227)
Half → 25K
19:52 | 8:11/mi
30K· 18.64 mi
2:34:11
Rank: #15265 (-103)
25K → 30K
27:12 | 8:45/mi
20M
2:46:48
Rank: #15496 (-231)
30K → 20M
12:37 | 9:17/mi
21M
2:56:26
Rank: #15544 (-48)
20M → 21M
9:38 | 9:38/mi
35K· 21.75 mi
3:03:18
Rank: #15671 (-127)
21M → 35K
6:52 | 9:11/mi
23M
3:14:54
Rank: #15757 (-86)
35K → 23M
11:36 | 9:16/mi
24M
3:23:53
Rank: #15848 (-91)
23M → 24M
8:59 | 8:59/mi
40K· 24.85 mi
3:31:45
Rank: #15898 (-50)
24M → 40K
7:52 | 9:12/mi
25.2M
3:35:02
Rank: #15869 (+29)
40K → 25.2M
3:17 | 9:31/mi
Finish· 26.22 mi
3:43:35
Rank: #15826 (+43)
25.2M → Finish
8:33 | 8:23/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:47:07
Pace8:10 /mi
2nd Half
Distance13.11 mi
Time1:56:28
Pace8:53 /mi
📊Positive Split: 8.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:16:2025:248:1125:24
8:11
-
10K
6.21 mi11:41:3350:378:0925:13
8:07
-0:04
15K
9.32 mi12:06:381:15:428:0725:05
8:04
-0:03
20K
12.43 mi12:32:281:41:328:1025:50
8:19
+0:15
Half
13.11 mi12:38:031:47:078:105:35
8:11
-0:08
25K
15.53 mi12:57:552:06:598:1019:52
8:11
0:00
30K
18.64 mi13:25:072:34:118:1627:12
8:45
+0:34
20M
20.00 mi13:37:442:46:488:2012:37
9:17
+0:32
21M
21.00 mi13:47:222:56:268:249:38
9:38
+0:21
35K
21.75 mi13:54:143:03:188:266:52
9:11
-0:27
23M
23.00 mi14:05:503:14:548:2811:36
9:16
+0:05
24M
24.00 mi14:14:493:23:538:308:59
8:59
-0:17
40K
24.85 mi14:22:413:31:458:317:52
9:12
+0:13
25.2M
25.20 mi14:25:583:35:028:323:17
9:31
+0:19
Finish
26.22 mi14:34:313:43:358:328:33
8:23
-1:08

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

8:04 /mi

Average Pace

8:32 /mi

Slowest Pace

9:38 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:42:44

73% of race

Time at Steady Pace

51:13

23% of race

Time at Slower Pace

9:38

4% of race

Average Pace: 8:32 /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 mi11:16:2025:248:1125:24
8:11
#15261
10K
6.21 mi11:41:3350:378:0925:13
8:07
#15430
15K
9.32 mi12:06:381:15:428:0725:05
8:04
#15264
20K
12.43 mi12:32:281:41:328:1025:50
8:19
#15372
Half
13.11 mi12:38:031:47:078:105:35
8:11
#15389
25K
15.53 mi12:57:552:06:598:1019:52
8:11
#15162
30K
18.64 mi13:25:072:34:118:1627:12
8:45
#15265
20M
20.00 mi13:37:442:46:488:2012:37
9:17
#15496
21M
21.00 mi13:47:222:56:268:249:38
9:38
#15544
35K
21.75 mi13:54:143:03:188:266:52
9:11
#15671
23M
23.00 mi14:05:503:14:548:2811:36
9:16
#15757
24M
24.00 mi14:14:493:23:538:308:59
8:59
#15848
40K
24.85 mi14:22:413:31:458:317:52
9:12
#15898
25.2M
25.20 mi14:25:583:35:028:323:17
9:31
#15869
Finish
26.22 mi14:34:313:43:358:328:33
8:23
#15826
Faster pace
Steady pace
Slower pace
Est.Checkpoint not recorded (estimated)
~Segment time uses estimated prior

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM55-59Seg. OverallSeg. MalesSeg. M55-59
5K3.11 mi3.11 mi15261104341043414980(Top 56%)10295(Top 68%)10295(Top 724%)
10K6.21 mi3.10 mi15430-16910491-5710491-5715621(Top 59%)10572(Top 70%)10572(Top 743%)
15K9.32 mi3.11 mi15264+16610418+7310418+7314980(Top 56%)10295(Top 68%)10295(Top 724%)
20K12.43 mi3.11 mi15372-10810438-2010438-2015679(Top 59%)10513(Top 69%)10513(Top 739%)
Half13.11 mi0.68 mi15389-1710439-110439-115786(Top 59%)10575(Top 70%)10575(Top 744%)
25K15.53 mi2.42 mi15162+22710331+10810331+10814159(Top 53%)9822(Top 65%)9822(Top 691%)
30K18.64 mi3.11 mi15265-10310326+510326+515798(Top 59%)10394(Top 68%)10394(Top 731%)
20M20.00 mi1.36 mi15496-23110390-6410390-6417926(Top 67%)11197(Top 74%)11197(Top 787%)
21M21.00 mi1.00 mi15544-4810381+910381+916555(Top 62%)10586(Top 70%)10586(Top 744%)
35K21.75 mi0.75 mi15671-12710412-3110412-3118623(Top 70%)11416(Top 75%)11416(Top 803%)
23M23.00 mi1.25 mi15757-8610420-810420-817342(Top 65%)10847(Top 71%)10847(Top 763%)
24M24.00 mi1.00 mi15848-9110441-2110441-2117126(Top 64%)10672(Top 70%)10672(Top 750%)
40K24.85 mi0.85 mi15898-5010458-1710458-1717086(Top 64%)10614(Top 70%)10614(Top 746%)
25.2M25.20 mi0.35 mi15869+2910440+1810440+1815237(Top 57%)9778(Top 64%)9778(Top 688%)
Finish26.22 mi1.02 mi15826+4310413+2710413+2714657(Top 55%)9568(Top 63%)9568(Top 673%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 56%
×21stories
+97ft-345ft

Overall

14980

Males

10295

M55-59

10295

5K→10K

3.1 - 6.2 mi

Top 59%
×5stories
+79ft-138ft

Overall

15621

Males

10572

M55-59

10572

10K→15K

6.2 - 9.3 mi

Top 56%
×3stories
+67ft-78ft

Overall

14980

Males

10295

M55-59

10295

15K→20K

9.3 - 12.4 mi

Top 59%
×5stories
+106ft-86ft

Overall

15679

Males

10513

M55-59

10513

20K→Half

12.4 - 13.1 mi

Top 59%
×2stories
+19ft-37ft

Overall

15786

Males

10575

M55-59

10575

Half→25K

13.1 - 15.5 mi

Top 53%
×4stories
+66ft-88ft

Overall

14159

Males

9822

M55-59

9822

25K→30K

15.5 - 18.6 mi

Top 59%
×9stories
+181ft-148ft

Overall

15798

Males

10394

M55-59

10394

30K→20M

18.6 - 20.0 mi

Top 67%
×5stories
+64ft-50ft

Overall

17926

Males

11197

M55-59

11197

20M→21M

20.0 - 21.0 mi

Top 62%
×8stories
+106ft-24ft

Overall

16555

Males

10586

M55-59

10586

21M→35K

21.0 - 21.8 mi

Top 70%
×7stories
+17ft-86ft

Overall

18623

Males

11416

M55-59

11416

35K→23M

21.8 - 23.0 mi

Top 65%
×5stories
+23ft-63ft

Overall

17342

Males

10847

M55-59

10847

23M→24M

23.0 - 24.0 mi

Top 64%
×6stories
+12ft-82ft

Overall

17126

Males

10672

M55-59

10672

24M→40K

24.0 - 24.9 mi

Top 64%
×1story
+6ft-20ft

Overall

17086

Males

10614

M55-59

10614

40K→25.2M

24.9 - 25.2 mi

Top 57%
×1story
+13ft-16ft

Overall

15237

Males

9778

M55-59

9778

25.2M→Finish

25.2 - 26.2 mi

Top 55%
×2stories
+22ft-21ft

Overall

14657

Males

9568

M55-59

9568

Passing Analysis

Category:
Athletes Passed
1470
Passed By
2035
Net Change
-565
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#15261
5K → 10K223392-169#15261#15430
10K → 15K277111+166#15430#15264
15K → 20K133241-108#15264#15372
20K → Half3249-17#15372#15389
Half → 25K26538+227#15389#15162
25K → 30K147250-103#15162#15265
30K → 20M27258-231#15265#15496
20M → 21M72120-48#15496#15544
21M → 35K18145-127#15544#15671
35K → 23M54140-86#15671#15757
23M → 24M50141-91#15757#15848
24M → 40K4595-50#15848#15898
40K → 25.2M4314+29#15898#15869
25.2M → Finish8441+43#15869#15826
TOTALS14702035-565
📊

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