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BOSTON MARATHON 2023

Matthew Robb

Bib: 8463•M

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Overall
#0 / 26622
Gender (Male)
#0 / 15176
Division (M18-39)
#0 / 5285
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
29:42
Rank: #22266
Start → 5K
29:42 | 9:34/mi
10K· 6.21 mi
1:01:20
Rank: #23326 (-1060)
5K → 10K
31:38 | 10:11/mi
15K· 9.32 mi
1:32:15
Rank: #23360 (-34)
10K → 15K
30:55 | 9:57/mi
20K· 12.43 mi
2:03:04
Rank: #23200 (+160)
15K → 20K
30:49 | 9:55/mi
Half· 13.11 mi
2:09:37
Rank: #23147 (+53)
20K → Half
6:33 | 9:36/mi
25K· 15.53 mi
2:35:04
Rank: #23160 (-13)
Half → 25K
25:27 | 10:30/mi
30K· 18.64 mi
3:09:40
Rank: #23201 (-41)
25K → 30K
34:36 | 11:08/mi
20M
3:24:49
Rank: #23165 (+36)
30K → 20M
15:09 | 11:09/mi
21M
3:36:32
Rank: #23117 (+48)
20M → 21M
11:43 | 11:43/mi
35K· 21.75 mi
3:44:15
Rank: #23078 (+39)
21M → 35K
7:43 | 10:19/mi
23M
3:57:19
Rank: #22950 (+128)
35K → 23M
13:04 | 10:26/mi
24M
4:07:45
Rank: #22899 (+51)
23M → 24M
10:26 | 10:26/mi
40K· 24.85 mi
4:16:52
Rank: #22855 (+44)
24M → 40K
9:07 | 10:40/mi
25.2M
4:20:49
Rank: #22835 (+20)
40K → 25.2M
3:57 | 11:27/mi
Finish· 26.22 mi
4:30:41
Rank: #22786 (+49)
25.2M → Finish
9:52 | 9:41/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:09:37
Pace9:53 /mi
2nd Half
Distance13.11 mi
Time2:21:04
Pace10:46 /mi
📊Positive Split: 8.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:55:1029:429:3429:42
9:34
-
10K
6.21 mi11:26:481:01:209:5231:38
10:11
+0:37
15K
9.32 mi11:57:431:32:159:5430:55
9:57
-0:14
20K
12.43 mi12:28:322:03:049:5430:49
9:55
-0:02
Half
13.11 mi12:35:052:09:379:536:33
9:36
-0:19
25K
15.53 mi13:00:322:35:049:5925:27
10:30
+0:54
30K
18.64 mi13:35:083:09:4010:1034:36
11:08
+0:38
20M
20.00 mi13:50:173:24:4910:1415:09
11:09
+0:01
21M
21.00 mi14:02:003:36:3210:1911:43
11:43
+0:34
35K
21.75 mi14:09:433:44:1510:197:43
10:19
-1:24
23M
23.00 mi14:22:473:57:1910:1913:04
10:26
+0:07
24M
24.00 mi14:33:134:07:4510:1910:26
10:26
0:00
40K
24.85 mi14:42:204:16:5210:209:07
10:40
+0:14
25.2M
25.20 mi14:46:174:20:4910:213:57
11:27
+0:47
Finish
26.22 mi14:56:094:30:4110:209:52
9:41
-1:46

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

9:34 /mi

Average Pace

10:20 /mi

Slowest Pace

11:43 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:47:51

40% of race

Time at Steady Pace

1:37:25

36% of race

Time at Slower Pace

1:05:25

24% of race

Average Pace: 10:19 /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 mi10:55:1029:429:3429:42
9:34
#22266
10K
6.21 mi11:26:481:01:209:5231:38
10:11
#23326
15K
9.32 mi11:57:431:32:159:5430:55
9:57
#23360
20K
12.43 mi12:28:322:03:049:5430:49
9:55
#23200
Half
13.11 mi12:35:052:09:379:536:33
9:36
#23147
25K
15.53 mi13:00:322:35:049:5925:27
10:30
#23160
30K
18.64 mi13:35:083:09:4010:1034:36
11:08
#23201
20M
20.00 mi13:50:173:24:4910:1415:09
11:09
#23165
21M
21.00 mi14:02:003:36:3210:1911:43
11:43
#23117
35K
21.75 mi14:09:433:44:1510:197:43
10:19
#23078
23M
23.00 mi14:22:473:57:1910:1913:04
10:26
#22950
24M
24.00 mi14:33:134:07:4510:1910:26
10:26
#22899
40K
24.85 mi14:42:204:16:5210:209:07
10:40
#22855
25.2M
25.20 mi14:46:174:20:4910:213:57
11:27
#22835
Finish
26.22 mi14:56:094:30:4110:209:52
9:41
#22786
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi22266132341323423410(Top 88%)13833(Top 91%)13833(Top 262%)
10K6.21 mi3.10 mi23326-106013767-53313767-53324081(Top 90%)14127(Top 93%)14127(Top 267%)
15K9.32 mi3.11 mi23360-3413800-3313800-3323410(Top 88%)13833(Top 91%)13833(Top 262%)
20K12.43 mi3.11 mi23200+16013722+7813722+7822701(Top 85%)13490(Top 89%)13490(Top 255%)
Half13.11 mi0.68 mi23147+5313699+2313699+2322372(Top 84%)13359(Top 88%)13359(Top 253%)
25K15.53 mi2.42 mi23160-1313695+413695+423193(Top 87%)13683(Top 90%)13683(Top 259%)
30K18.64 mi3.11 mi23201-41136951369523311(Top 88%)13654(Top 90%)13654(Top 258%)
20M20.00 mi1.36 mi23165+3613664+3113664+3122939(Top 86%)13443(Top 89%)13443(Top 254%)
21M21.00 mi1.00 mi23117+4813625+3913625+3922257(Top 84%)13092(Top 86%)13092(Top 248%)
35K21.75 mi0.75 mi23078+3913600+2513600+2522021(Top 83%)12937(Top 85%)12937(Top 245%)
23M23.00 mi1.25 mi22950+12813527+7313527+7321164(Top 79%)12533(Top 83%)12533(Top 237%)
24M24.00 mi1.00 mi22899+5113496+3113496+3121871(Top 82%)12818(Top 84%)12818(Top 243%)
40K24.85 mi0.85 mi22855+4413469+2713469+2721622(Top 81%)12652(Top 83%)12652(Top 239%)
25.2M25.20 mi0.35 mi22835+2013457+1213457+1221444(Top 81%)12593(Top 83%)12593(Top 238%)
Finish26.22 mi1.02 mi22786+4913430+2713430+2720733(Top 78%)12291(Top 81%)12291(Top 233%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 88%
×21stories
+97ft-345ft

Overall

23410

Males

13833

M18-39

13833

5K→10K

3.1 - 6.2 mi

Top 90%
×5stories
+79ft-138ft

Overall

24081

Males

14127

M18-39

14127

10K→15K

6.2 - 9.3 mi

Top 88%
×3stories
+67ft-78ft

Overall

23410

Males

13833

M18-39

13833

15K→20K

9.3 - 12.4 mi

Top 85%
×5stories
+106ft-86ft

Overall

22701

Males

13490

M18-39

13490

20K→Half

12.4 - 13.1 mi

Top 84%
×2stories
+19ft-37ft

Overall

22372

Males

13359

M18-39

13359

Half→25K

13.1 - 15.5 mi

Top 87%
×4stories
+66ft-88ft

Overall

23193

Males

13683

M18-39

13683

25K→30K

15.5 - 18.6 mi

Top 88%
×9stories
+181ft-148ft

Overall

23311

Males

13654

M18-39

13654

30K→20M

18.6 - 20.0 mi

Top 86%
×5stories
+64ft-50ft

Overall

22939

Males

13443

M18-39

13443

20M→21M

20.0 - 21.0 mi

Top 84%
×8stories
+106ft-24ft

Overall

22257

Males

13092

M18-39

13092

21M→35K

21.0 - 21.8 mi

Top 83%
×7stories
+17ft-86ft

Overall

22021

Males

12937

M18-39

12937

35K→23M

21.8 - 23.0 mi

Top 79%
×5stories
+23ft-63ft

Overall

21164

Males

12533

M18-39

12533

23M→24M

23.0 - 24.0 mi

Top 82%
×6stories
+12ft-82ft

Overall

21871

Males

12818

M18-39

12818

24M→40K

24.0 - 24.9 mi

Top 81%
×1story
+6ft-20ft

Overall

21622

Males

12652

M18-39

12652

40K→25.2M

24.9 - 25.2 mi

Top 81%
×1story
+13ft-16ft

Overall

21444

Males

12593

M18-39

12593

25.2M→Finish

25.2 - 26.2 mi

Top 78%
×2stories
+22ft-21ft

Overall

20733

Males

12291

M18-39

12291

Passing Analysis

Category:
Athletes Passed
1137
Passed By
1657
Net Change
-520
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#22266
5K → 10K151075-1060#22266#23326
10K → 15K127161-34#23326#23360
15K → 20K20040+160#23360#23200
20K → Half618+53#23200#23147
Half → 25K96109-13#23147#23160
25K → 30K111152-41#23160#23201
30K → 20M6731+36#23201#23165
20M → 21M7123+48#23165#23117
21M → 35K5112+39#23117#23078
35K → 23M1313+128#23078#22950
23M → 24M6918+51#22950#22899
24M → 40K5814+44#22899#22855
40K → 25.2M233+20#22855#22835
25.2M → Finish578+49#22835#22786
TOTALS11371657-520
📊

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