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BOSTON MARATHON 2023

Tom Robertson

Bib: 1089•M

IL

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 8%
Gender (Male)
#0 / 15176
Top 13%
Division (M18-39)
#0 / 5285
Top 30%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
19:40
Rank: #1545
Start → 5K
19:40 | 6:20/mi
10K· 6.21 mi
39:28
Rank: #1791 (-246)
5K → 10K
19:48 | 6:22/mi
15K· 9.32 mi
59:54
Rank: #2126 (-335)
10K → 15K
20:26 | 6:35/mi
20K· 12.43 mi
1:19:54
Rank: #2080 (+46)
15K → 20K
20:00 | 6:26/mi
Half· 13.11 mi
1:24:15
Rank: #2082 (-2)
20K → Half
4:21 | 6:23/mi
25K· 15.53 mi
1:39:57
Rank: #2067 (+15)
Half → 25K
15:42 | 6:29/mi
30K· 18.64 mi
2:00:45
Rank: #2101 (-34)
25K → 30K
20:48 | 6:42/mi
20M
2:09:53
Rank: #2106 (-5)
30K → 20M
9:08 | 6:43/mi
21M
2:16:54
Rank: #2096 (+10)
20M → 21M
7:01 | 7:01/mi
35K· 21.75 mi
2:21:47
Rank: #2105 (-9)
21M → 35K
4:53 | 6:32/mi
23M
2:30:15
Rank: #2092 (+13)
35K → 23M
8:28 | 6:46/mi
24M
2:36:53
Rank: #2099 (-7)
23M → 24M
6:38 | 6:38/mi
40K· 24.85 mi
2:42:35
Rank: #2091 (+8)
24M → 40K
5:42 | 6:40/mi
25.2M
2:45:03
Rank: #2077 (+14)
40K → 25.2M
2:28 | 7:09/mi
Finish· 26.22 mi
2:51:48
Rank: #2074 (+3)
25.2M → Finish
6:45 | 6:37/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:24:15
Pace6:26 /mi
2nd Half
Distance13.11 mi
Time1:27:33
Pace6:41 /mi
📊Positive Split: 3.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:19:5819:406:2019:40
6:20
-
10K
6.21 mi10:39:4639:286:2119:48
6:22
+0:02
15K
9.32 mi11:00:1259:546:2620:26
6:35
+0:13
20K
12.43 mi11:20:121:19:546:2620:00
6:26
-0:09
Half
13.11 mi11:24:331:24:156:264:21
6:23
-0:03
25K
15.53 mi11:40:151:39:576:2615:42
6:29
+0:06
30K
18.64 mi12:01:032:00:456:2920:48
6:42
+0:13
20M
20.00 mi12:10:112:09:536:309:08
6:43
+0:01
21M
21.00 mi12:17:122:16:546:317:01
7:01
+0:18
35K
21.75 mi12:22:052:21:476:314:53
6:32
-0:29
23M
23.00 mi12:30:332:30:156:328:28
6:46
+0:14
24M
24.00 mi12:37:112:36:536:326:38
6:38
-0:08
40K
24.85 mi12:42:532:42:356:325:42
6:40
+0:02
25.2M
25.20 mi12:45:212:45:036:332:28
7:09
+0:29
Finish
26.22 mi12:52:062:51:486:336:45
6:37
-0:32

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

6:20 /mi

Average Pace

6:33 /mi

Slowest Pace

7:09 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:42:19

94% of race

Time at Steady Pace

9:29

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:33 /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 mi10:19:5819:406:2019:40
6:20
#1545
10K
6.21 mi10:39:4639:286:2119:48
6:22
#1791
15K
9.32 mi11:00:1259:546:2620:26
6:35
#2126
20K
12.43 mi11:20:121:19:546:2620:00
6:26
#2080
Half
13.11 mi11:24:331:24:156:264:21
6:23
#2082
25K
15.53 mi11:40:151:39:576:2615:42
6:29
#2067
30K
18.64 mi12:01:032:00:456:2920:48
6:42
#2101
20M
20.00 mi12:10:112:09:536:309:08
6:43
#2106
21M
21.00 mi12:17:122:16:546:317:01
7:01
#2096
35K
21.75 mi12:22:052:21:476:314:53
6:32
#2105
23M
23.00 mi12:30:332:30:156:328:28
6:46
#2092
24M
24.00 mi12:37:112:36:536:326:38
6:38
#2099
40K
24.85 mi12:42:532:42:356:325:42
6:40
#2091
25.2M
25.20 mi12:45:212:45:036:332:28
7:09
#2077
Finish
26.22 mi12:52:062:51:486:336:45
6:37
#2074
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi1545147214723088(Top 12%)2942(Top 19%)2942(Top 56%)
10K6.21 mi3.10 mi1791-2461713-2411713-2412100(Top 8%)2011(Top 13%)2011(Top 38%)
15K9.32 mi3.11 mi2126-3352039-3262039-3263088(Top 12%)2942(Top 19%)2942(Top 56%)
20K12.43 mi3.11 mi2080+461992+471992+471981(Top 7%)1902(Top 13%)1902(Top 36%)
Half13.11 mi0.68 mi2082-21994-21994-22111(Top 8%)2027(Top 13%)2027(Top 38%)
25K15.53 mi2.42 mi2067+151982+121982+122055(Top 8%)1969(Top 13%)1969(Top 37%)
30K18.64 mi3.11 mi2101-342015-332015-332370(Top 9%)2256(Top 15%)2256(Top 43%)
20M20.00 mi1.36 mi2106-52018-32018-32363(Top 9%)2239(Top 15%)2239(Top 42%)
21M21.00 mi1.00 mi2096+102008+102008+102201(Top 8%)2079(Top 14%)2079(Top 39%)
35K21.75 mi0.75 mi2105-92018-102018-102529(Top 9%)2388(Top 16%)2388(Top 45%)
23M23.00 mi1.25 mi2092+132006+122006+122426(Top 9%)2278(Top 15%)2278(Top 43%)
24M24.00 mi1.00 mi2099-72014-82014-82718(Top 10%)2527(Top 17%)2527(Top 48%)
40K24.85 mi0.85 mi2091+82005+92005+92174(Top 8%)2025(Top 13%)2025(Top 38%)
25.2M25.20 mi0.35 mi2077+141991+141991+142273(Top 9%)2106(Top 14%)2106(Top 40%)
Finish26.22 mi1.02 mi2074+31988+31988+33074(Top 12%)2769(Top 18%)2769(Top 52%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 12%
×21stories
+97ft-345ft

Overall

3088

Males

2942

M18-39

2942

5K→10K

3.1 - 6.2 mi

Top 8%
×5stories
+79ft-138ft

Overall

2100

Males

2011

M18-39

2011

10K→15K

6.2 - 9.3 mi

Top 12%
×3stories
+67ft-78ft

Overall

3088

Males

2942

M18-39

2942

15K→20K

9.3 - 12.4 mi

Top 7%
×5stories
+106ft-86ft

Overall

1981

Males

1902

M18-39

1902

20K→Half

12.4 - 13.1 mi

Top 8%
×2stories
+19ft-37ft

Overall

2111

Males

2027

M18-39

2027

Half→25K

13.1 - 15.5 mi

Top 8%
×4stories
+66ft-88ft

Overall

2055

Males

1969

M18-39

1969

25K→30K

15.5 - 18.6 mi

Top 9%
×9stories
+181ft-148ft

Overall

2370

Males

2256

M18-39

2256

30K→20M

18.6 - 20.0 mi

Top 9%
×5stories
+64ft-50ft

Overall

2363

Males

2239

M18-39

2239

20M→21M

20.0 - 21.0 mi

Top 8%
×8stories
+106ft-24ft

Overall

2201

Males

2079

M18-39

2079

21M→35K

21.0 - 21.8 mi

Top 9%
×7stories
+17ft-86ft

Overall

2529

Males

2388

M18-39

2388

35K→23M

21.8 - 23.0 mi

Top 9%
×5stories
+23ft-63ft

Overall

2426

Males

2278

M18-39

2278

23M→24M

23.0 - 24.0 mi

Top 10%
×6stories
+12ft-82ft

Overall

2718

Males

2527

M18-39

2527

24M→40K

24.0 - 24.9 mi

Top 8%
×1story
+6ft-20ft

Overall

2174

Males

2025

M18-39

2025

40K→25.2M

24.9 - 25.2 mi

Top 9%
×1story
+13ft-16ft

Overall

2273

Males

2106

M18-39

2106

25.2M→Finish

25.2 - 26.2 mi

Top 12%
×2stories
+22ft-21ft

Overall

3074

Males

2769

M18-39

2769

Passing Analysis

Category:
Athletes Passed
469
Passed By
998
Net Change
-529
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#1545
5K → 10K21267-246#1545#1791
10K → 15K6341-335#1791#2126
15K → 20K8337+46#2126#2080
20K → Half810-2#2080#2082
Half → 25K4934+15#2082#2067
25K → 30K5993-34#2067#2101
30K → 20M3237-5#2101#2106
20M → 21M3424+10#2106#2096
21M → 35K1221-9#2096#2105
35K → 23M5037+13#2105#2092
23M → 24M2532-7#2092#2099
24M → 40K2921+8#2099#2091
40K → 25.2M206+14#2091#2077
25.2M → Finish4138+3#2077#2074
TOTALS469998-529
📊

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