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BOSTON MARATHON 2023

Mathew Thomas

Bib: 18677•M

TX

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
25:53
Rank: #16346
Start → 5K
25:53 | 8:20/mi
10K· 6.21 mi
51:07
Rank: #15999 (+347)
5K → 10K
25:14 | 8:07/mi
15K· 9.32 mi
1:16:33
Rank: #15921 (+78)
10K → 15K
25:26 | 8:11/mi
20K· 12.43 mi
1:42:59
Rank: #16160 (-239)
15K → 20K
26:26 | 8:30/mi
Half· 13.11 mi
1:48:31
Rank: #16111 (+49)
20K → Half
5:32 | 8:07/mi
25K· 15.53 mi
2:08:42
Rank: #15932 (+179)
Half → 25K
20:11 | 8:19/mi
30K· 18.64 mi
2:36:09
Rank: #15988 (-56)
25K → 30K
27:27 | 8:50/mi
20M
2:48:33
Rank: #16084 (-96)
30K → 20M
12:24 | 9:07/mi
21M
2:57:24
Rank: #15847 (+237)
20M → 21M
8:51 | 8:51/mi
35K· 21.75 mi
3:03:25
Rank: #15705 (+142)
21M → 35K
6:01 | 8:03/mi
23M
3:14:13
Rank: #15584 (+121)
35K → 23M
10:48 | 8:38/mi
24M
3:22:15
Rank: #15409 (+175)
23M → 24M
8:02 | 8:02/mi
40K· 24.85 mi
3:29:17
Rank: #15249 (+160)
24M → 40K
7:02 | 8:14/mi
25.2M
3:32:29
Rank: #15225 (+24)
40K → 25.2M
3:12 | 9:17/mi
Finish· 26.22 mi
3:40:40
Rank: #15100 (+125)
25.2M → Finish
8:11 | 8:02/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:48:31
Pace8:17 /mi
2nd Half
Distance13.11 mi
Time1:52:09
Pace8:33 /mi
📊Positive Split: 3.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:22:2625:538:2025:53
8:20
-
10K
6.21 mi11:47:4051:078:1425:14
8:07
-0:13
15K
9.32 mi12:13:061:16:338:1325:26
8:11
+0:04
20K
12.43 mi12:39:321:42:598:1726:26
8:30
+0:19
Half
13.11 mi12:45:041:48:318:175:32
8:07
-0:23
25K
15.53 mi13:05:152:08:428:1720:11
8:19
+0:12
30K
18.64 mi13:32:422:36:098:2327:27
8:50
+0:31
20M
20.00 mi13:45:062:48:338:2612:24
9:07
+0:17
21M
21.00 mi13:53:572:57:248:278:51
8:51
-0:16
35K
21.75 mi13:59:583:03:258:266:01
8:03
-0:48
23M
23.00 mi14:10:463:14:138:2710:48
8:38
+0:35
24M
24.00 mi14:18:483:22:158:268:02
8:02
-0:36
40K
24.85 mi14:25:503:29:178:257:02
8:14
+0:12
25.2M
25.20 mi14:29:023:32:298:263:12
9:17
+1:03
Finish
26.22 mi14:37:133:40:408:258:11
8:02
-1:15

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

8:02 /mi

Average Pace

8:25 /mi

Slowest Pace

9:17 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:16:13

89% of race

Time at Steady Pace

24:27

11% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:25 /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 mi11:22:2625:538:2025:53
8:20
#16346
10K
6.21 mi11:47:4051:078:1425:14
8:07
#15999
15K
9.32 mi12:13:061:16:338:1325:26
8:11
#15921
20K
12.43 mi12:39:321:42:598:1726:26
8:30
#16160
Half
13.11 mi12:45:041:48:318:175:32
8:07
#16111
25K
15.53 mi13:05:152:08:428:1720:11
8:19
#15932
30K
18.64 mi13:32:422:36:098:2327:27
8:50
#15988
20M
20.00 mi13:45:062:48:338:2612:24
9:07
#16084
21M
21.00 mi13:53:572:57:248:278:51
8:51
#15847
35K
21.75 mi13:59:583:03:258:266:01
8:03
#15705
23M
23.00 mi14:10:463:14:138:2710:48
8:38
#15584
24M
24.00 mi14:18:483:22:158:268:02
8:02
#15409
40K
24.85 mi14:25:503:29:178:257:02
8:14
#15249
25.2M
25.20 mi14:29:023:32:298:263:12
9:17
#15225
Finish
26.22 mi14:37:133:40:408:258:11
8:02
#15100
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM55-59Seg. OverallSeg. MalesSeg. M55-59
5K3.11 mi3.11 mi16346108291082915743(Top 59%)10587(Top 70%)10587(Top 745%)
10K6.21 mi3.10 mi15999+34710699+13010699+13015663(Top 59%)10583(Top 70%)10583(Top 744%)
15K9.32 mi3.11 mi15921+7810671+2810671+2815743(Top 59%)10587(Top 70%)10587(Top 745%)
20K12.43 mi3.11 mi16160-23910739-6810739-6816893(Top 63%)10998(Top 72%)10998(Top 773%)
Half13.11 mi0.68 mi16111+4910710+2910710+2915170(Top 57%)10363(Top 68%)10363(Top 729%)
25K15.53 mi2.42 mi15932+17910619+9110619+9115093(Top 57%)10172(Top 67%)10172(Top 715%)
30K18.64 mi3.11 mi15988-5610601+1810601+1816269(Top 61%)10592(Top 70%)10592(Top 745%)
20M20.00 mi1.36 mi16084-9610621-2010621-2017167(Top 64%)10875(Top 72%)10875(Top 765%)
21M21.00 mi1.00 mi15847+23710499+12210499+12212541(Top 47%)8825(Top 58%)8825(Top 621%)
35K21.75 mi0.75 mi15705+14210425+7410425+7412425(Top 47%)8759(Top 58%)8759(Top 616%)
23M23.00 mi1.25 mi15584+12110347+7810347+7813926(Top 52%)9340(Top 62%)9340(Top 657%)
24M24.00 mi1.00 mi15409+17510273+7410273+7411472(Top 43%)8148(Top 54%)8148(Top 573%)
40K24.85 mi0.85 mi15249+16010208+6510208+6511535(Top 43%)8101(Top 53%)8101(Top 570%)
25.2M25.20 mi0.35 mi15225+2410186+2210186+2214038(Top 53%)9256(Top 61%)9256(Top 651%)
Finish26.22 mi1.02 mi15100+12510114+7210114+7212332(Top 46%)8446(Top 56%)8446(Top 594%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 59%
×21stories
+97ft-345ft

Overall

15743

Males

10587

M55-59

10587

5K→10K

3.1 - 6.2 mi

Top 59%
×5stories
+79ft-138ft

Overall

15663

Males

10583

M55-59

10583

10K→15K

6.2 - 9.3 mi

Top 59%
×3stories
+67ft-78ft

Overall

15743

Males

10587

M55-59

10587

15K→20K

9.3 - 12.4 mi

Top 63%
×5stories
+106ft-86ft

Overall

16893

Males

10998

M55-59

10998

20K→Half

12.4 - 13.1 mi

Top 57%
×2stories
+19ft-37ft

Overall

15170

Males

10363

M55-59

10363

Half→25K

13.1 - 15.5 mi

Top 57%
×4stories
+66ft-88ft

Overall

15093

Males

10172

M55-59

10172

25K→30K

15.5 - 18.6 mi

Top 61%
×9stories
+181ft-148ft

Overall

16269

Males

10592

M55-59

10592

30K→20M

18.6 - 20.0 mi

Top 64%
×5stories
+64ft-50ft

Overall

17167

Males

10875

M55-59

10875

20M→21M

20.0 - 21.0 mi

Top 47%
×8stories
+106ft-24ft

Overall

12541

Males

8825

M55-59

8825

21M→35K

21.0 - 21.8 mi

Top 47%
×7stories
+17ft-86ft

Overall

12425

Males

8759

M55-59

8759

35K→23M

21.8 - 23.0 mi

Top 52%
×5stories
+23ft-63ft

Overall

13926

Males

9340

M55-59

9340

23M→24M

23.0 - 24.0 mi

Top 43%
×6stories
+12ft-82ft

Overall

11472

Males

8148

M55-59

8148

24M→40K

24.0 - 24.9 mi

Top 43%
×1story
+6ft-20ft

Overall

11535

Males

8101

M55-59

8101

40K→25.2M

24.9 - 25.2 mi

Top 53%
×1story
+13ft-16ft

Overall

14038

Males

9256

M55-59

9256

25.2M→Finish

25.2 - 26.2 mi

Top 46%
×2stories
+22ft-21ft

Overall

12332

Males

8446

M55-59

8446

Passing Analysis

Category:
Athletes Passed
2417
Passed By
1171
Net Change
+1246
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#16346
5K → 10K499152+347#16346#15999
10K → 15K238160+78#15999#15921
15K → 20K99338-239#15921#16160
20K → Half6617+49#16160#16111
Half → 25K22748+179#16111#15932
25K → 30K162218-56#15932#15988
30K → 20M57153-96#15988#16084
20M → 21M2436+237#16084#15847
21M → 35K1442+142#15847#15705
35K → 23M14625+121#15705#15584
23M → 24M1794+175#15584#15409
24M → 40K1677+160#15409#15249
40K → 25.2M4723+24#15249#15225
25.2M → Finish14318+125#15225#15100
TOTALS24171171+1246
📊

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