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BOSTON MARATHON 2023

Ian Robinson

Bib: 1433•M

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 40%
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
19:30
Rank: #1370
Start → 5K
19:30 | 6:17/mi
10K· 6.21 mi
38:44
Rank: #1320 (+50)
5K → 10K
19:14 | 6:11/mi
15K· 9.32 mi
58:38
Rank: #1549 (-229)
10K → 15K
19:54 | 6:24/mi
20K· 12.43 mi
1:22:34
Rank: #3410 (-1861)
15K → 20K
23:56 | 7:42/mi
Half· 13.11 mi
1:27:47
Rank: #3867 (-457)
20K → Half
5:13 | 7:39/mi
25K· 15.53 mi
1:53:09
Rank: #7954 (-4087)
Half → 25K
25:22 | 10:28/mi
30K· 18.64 mi
2:19:45
Rank: #9130 (-1176)
25K → 30K
26:36 | 8:34/mi
20M
2:30:46
Rank: #9261 (-131)
30K → 20M
11:01 | 8:06/mi
21M
2:39:38
Rank: #9445 (-184)
20M → 21M
8:52 | 8:52/mi
35K· 21.75 mi
2:47:04
Rank: #10043 (-598)
21M → 35K
7:26 | 9:56/mi
23M
2:57:15
Rank: #10056 (-13)
35K → 23M
10:11 | 8:08/mi
24M
3:05:14
Rank: #10093 (-37)
23M → 24M
7:59 | 7:59/mi
40K· 24.85 mi
3:12:20
Rank: #10134 (-41)
24M → 40K
7:06 | 8:18/mi
25.2M
3:15:45
Rank: #10265 (-131)
40K → 25.2M
3:25 | 9:54/mi
Finish· 26.22 mi
3:24:52
Rank: #10603 (-338)
25.2M → Finish
9:07 | 8:57/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:27:47
Pace6:42 /mi
2nd Half
Distance13.11 mi
Time1:57:05
Pace8:56 /mi
📊Positive Split: 33.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:19:4919:306:1719:30
6:17
-
10K
6.21 mi10:39:0338:446:1419:14
6:11
-0:06
15K
9.32 mi10:58:5758:386:1719:54
6:24
+0:13
20K
12.43 mi11:22:531:22:346:3923:56
7:42
+1:18
Half
13.11 mi11:28:061:27:476:425:13
7:39
-0:03
25K
15.53 mi11:53:281:53:097:1725:22
10:28
+2:49
30K
18.64 mi12:20:042:19:457:3026:36
8:34
-1:54
20M
20.00 mi12:31:052:30:467:3211:01
8:06
-0:28
21M
21.00 mi12:39:572:39:387:368:52
8:52
+0:46
35K
21.75 mi12:47:232:47:047:417:26
9:56
+1:04
23M
23.00 mi12:57:342:57:157:4210:11
8:08
-1:48
24M
24.00 mi13:05:333:05:147:437:59
7:59
-0:09
40K
24.85 mi13:12:393:12:207:447:06
8:18
+0:19
25.2M
25.20 mi13:16:043:15:457:463:25
9:54
+1:36
Finish
26.22 mi13:25:113:24:527:499:07
8:57
-0:57

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

6:11 /mi

Average Pace

7:49 /mi

Slowest Pace

10:28 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

58:38

29% of race

Time at Steady Pace

1:32:02

45% of race

Time at Slower Pace

54:12

26% of race

Average Pace: 7:49 /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 mi10:19:4919:306:1719:30
6:17
#1370
10K
6.21 mi10:39:0338:446:1419:14
6:11
#1320
15K
9.32 mi10:58:5758:386:1719:54
6:24
#1549
20K
12.43 mi11:22:531:22:346:3923:56
7:42
#3410
Half
13.11 mi11:28:061:27:476:425:13
7:39
#3867
25K
15.53 mi11:53:281:53:097:1725:22
10:28
#7954
30K
18.64 mi12:20:042:19:457:3026:36
8:34
#9130
20M
20.00 mi12:31:052:30:467:3211:01
8:06
#9261
21M
21.00 mi12:39:572:39:387:368:52
8:52
#9445
35K
21.75 mi12:47:232:47:047:417:26
9:56
#10043
23M
23.00 mi12:57:342:57:157:4210:11
8:08
#10056
24M
24.00 mi13:05:333:05:147:437:59
7:59
#10093
40K
24.85 mi13:12:393:12:207:447:06
8:18
#10134
25.2M
25.20 mi13:16:043:15:457:463:25
9:54
#10265
Finish
26.22 mi13:25:113:24:527:499:07
8:57
#10603
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi1370130213022143(Top 8%)2056(Top 14%)2056(Top 39%)
10K6.21 mi3.10 mi1320+501254+481254+481335(Top 5%)1272(Top 8%)1272(Top 24%)
15K9.32 mi3.11 mi1549-2291479-2251479-2252143(Top 8%)2056(Top 14%)2056(Top 39%)
20K12.43 mi3.11 mi3410-18613235-17563235-175610938(Top 41%)8545(Top 56%)8545(Top 162%)
Half13.11 mi0.68 mi3867-4573648-4133648-41311341(Top 43%)8774(Top 58%)8774(Top 166%)
25K15.53 mi2.42 mi7954-40876887-32396887-323923117(Top 87%)13640(Top 90%)13640(Top 258%)
30K18.64 mi3.11 mi9130-11767585-6987585-69814672(Top 55%)9916(Top 65%)9916(Top 188%)
20M20.00 mi1.36 mi9261-1317631-467631-4611047(Top 41%)8268(Top 54%)8268(Top 156%)
21M21.00 mi1.00 mi9445-1847722-917722-9112610(Top 47%)8848(Top 58%)8848(Top 167%)
35K21.75 mi0.75 mi10043-5988038-3168038-31621079(Top 79%)12517(Top 82%)12517(Top 237%)
23M23.00 mi1.25 mi10056-138023+158023+1510684(Top 40%)7808(Top 51%)7808(Top 148%)
24M24.00 mi1.00 mi10093-378010+138010+1311097(Top 42%)7939(Top 52%)7939(Top 150%)
40K24.85 mi0.85 mi10134-418001+98001+912027(Top 45%)8324(Top 55%)8324(Top 158%)
25.2M25.20 mi0.35 mi10265-1318059-588059-5816926(Top 64%)10503(Top 69%)10503(Top 199%)
Finish26.22 mi1.02 mi10603-3388195-1368195-13617668(Top 66%)10899(Top 72%)10899(Top 206%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 8%
×21stories
+97ft-345ft

Overall

2143

Males

2056

M18-39

2056

5K→10K

3.1 - 6.2 mi

Top 5%
×5stories
+79ft-138ft

Overall

1335

Males

1272

M18-39

1272

10K→15K

6.2 - 9.3 mi

Top 8%
×3stories
+67ft-78ft

Overall

2143

Males

2056

M18-39

2056

15K→20K

9.3 - 12.4 mi

Top 41%
×5stories
+106ft-86ft

Overall

10938

Males

8545

M18-39

8545

20K→Half

12.4 - 13.1 mi

Top 43%
×2stories
+19ft-37ft

Overall

11341

Males

8774

M18-39

8774

Half→25K

13.1 - 15.5 mi

Top 87%
×4stories
+66ft-88ft

Overall

23117

Males

13640

M18-39

13640

25K→30K

15.5 - 18.6 mi

Top 55%
×9stories
+181ft-148ft

Overall

14672

Males

9916

M18-39

9916

30K→20M

18.6 - 20.0 mi

Top 41%
×5stories
+64ft-50ft

Overall

11047

Males

8268

M18-39

8268

20M→21M

20.0 - 21.0 mi

Top 47%
×8stories
+106ft-24ft

Overall

12610

Males

8848

M18-39

8848

21M→35K

21.0 - 21.8 mi

Top 79%
×7stories
+17ft-86ft

Overall

21079

Males

12517

M18-39

12517

35K→23M

21.8 - 23.0 mi

Top 40%
×5stories
+23ft-63ft

Overall

10684

Males

7808

M18-39

7808

23M→24M

23.0 - 24.0 mi

Top 42%
×6stories
+12ft-82ft

Overall

11097

Males

7939

M18-39

7939

24M→40K

24.0 - 24.9 mi

Top 45%
×1story
+6ft-20ft

Overall

12027

Males

8324

M18-39

8324

40K→25.2M

24.9 - 25.2 mi

Top 64%
×1story
+13ft-16ft

Overall

16926

Males

10503

M18-39

10503

25.2M→Finish

25.2 - 26.2 mi

Top 66%
×2stories
+22ft-21ft

Overall

17668

Males

10899

M18-39

10899

Passing Analysis

Category:
Athletes Passed
430*
Passed By
9660
Net Change
-9233
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#1370
5K → 10K9646+50#1370#1320
10K → 15K10239-229#1320#1549
15K → 20K01861-1861#1549#3410
20K → Half1458-457#3410#3867
Half → 25K04087-4087#3867#7954
25K → 30K191195-1176#7954#9130
30K → 20M39170-131#9130#9261
20M → 21M44228-184#9261#9445
21M → 35K3599-598#9445#10043
35K → 23M7386-13#10043#10056
23M → 24M6197-37#10056#10093
24M → 40K5798-41#10093#10134
40K → 25.2M6*137-131#10134#10265
25.2M → Finish21359-338#10265#10603
TOTALS430*9660-9233

* Includes athletes who did not complete a segment (DNF/DNQ).

📊

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