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BOSTON MARATHON 2023

Knox Robinson

Bib: 1187•M

CA

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 13%
Gender (Male)
#0 / 15176
Top 21%
Masters (Masters Men)
#0 / 9891
Top 9%
Division (M45-49)
#0 / 2252
Top 11%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
19:25
Rank: #1255
Start → 5K
19:25 | 6:15/mi
10K· 6.21 mi
38:49
Rank: #1368 (-113)
5K → 10K
19:25 | 6:15/mi
15K· 9.32 mi
58:37
Rank: #1539 (-171)
10K → 15K
19:48 | 6:22/mi
20K· 12.43 mi
1:18:38
Rank: #1650 (-111)
15K → 20K
20:01 | 6:27/mi
Half· 13.11 mi
1:22:59
Rank: #1670 (-20)
20K → Half
4:21 | 6:23/mi
25K· 15.53 mi
1:38:49
Rank: #1754 (-84)
Half → 25K
15:50 | 6:32/mi
30K· 18.64 mi
2:00:17
Rank: #1981 (-227)
25K → 30K
21:28 | 6:55/mi
20M
2:10:10
Rank: #2186 (-205)
30K → 20M
9:53 | 7:16/mi
21M
2:18:09
Rank: #2383 (-197)
20M → 21M
7:59 | 7:59/mi
35K· 21.75 mi
2:23:25
Rank: #2452 (-69)
21M → 35K
5:16 | 7:02/mi
23M
2:32:42
Rank: #2582 (-130)
35K → 23M
9:17 | 7:25/mi
24M
2:39:56
Rank: #2725 (-143)
23M → 24M
7:14 | 7:14/mi
40K· 24.85 mi
2:46:23
Rank: #2880 (-155)
24M → 40K
6:27 | 7:33/mi
25.2M
2:49:18
Rank: #2959 (-79)
40K → 25.2M
2:55 | 8:27/mi
Finish· 26.22 mi
2:57:54
Rank: #3455 (-496)
25.2M → Finish
8:36 | 8:26/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:22:59
Pace6:20 /mi
2nd Half
Distance13.11 mi
Time1:34:55
Pace7:14 /mi
📊Positive Split: 14.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:19:2619:256:1519:25
6:15
-
10K
6.21 mi10:38:5038:496:1519:25
6:15
0:00
15K
9.32 mi10:58:3858:376:1719:48
6:22
+0:07
20K
12.43 mi11:18:391:18:386:2020:01
6:27
+0:05
Half
13.11 mi11:23:001:22:596:204:21
6:23
-0:04
25K
15.53 mi11:38:501:38:496:2215:50
6:32
+0:09
30K
18.64 mi12:00:182:00:176:2721:28
6:55
+0:23
20M
20.00 mi12:10:112:10:106:309:53
7:16
+0:21
21M
21.00 mi12:18:102:18:096:357:59
7:59
+0:43
35K
21.75 mi12:23:262:23:256:365:16
7:02
-0:57
23M
23.00 mi12:32:432:32:426:389:17
7:25
+0:23
24M
24.00 mi12:39:572:39:566:407:14
7:14
-0:11
40K
24.85 mi12:46:242:46:236:426:27
7:33
+0:19
25.2M
25.20 mi12:49:192:49:186:432:55
8:27
+0:54
Finish
26.22 mi12:57:552:57:546:478:36
8:26
-0:01

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

6:15 /mi

Average Pace

6:47 /mi

Slowest Pace

8:27 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:38:49

56% of race

Time at Steady Pace

43:51

25% of race

Time at Slower Pace

35:14

20% of race

Average Pace: 6:47 /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 mi10:19:2619:256:1519:25
6:15
#1255
10K
6.21 mi10:38:5038:496:1519:25
6:15
#1368
15K
9.32 mi10:58:3858:376:1719:48
6:22
#1539
20K
12.43 mi11:18:391:18:386:2020:01
6:27
#1650
Half
13.11 mi11:23:001:22:596:204:21
6:23
#1670
25K
15.53 mi11:38:501:38:496:2215:50
6:32
#1754
30K
18.64 mi12:00:182:00:176:2721:28
6:55
#1981
20M
20.00 mi12:10:112:10:106:309:53
7:16
#2186
21M
21.00 mi12:18:102:18:096:357:59
7:59
#2383
35K
21.75 mi12:23:262:23:256:365:16
7:02
#2452
23M
23.00 mi12:32:432:32:426:389:17
7:25
#2582
24M
24.00 mi12:39:572:39:566:407:14
7:14
#2725
40K
24.85 mi12:46:242:46:236:426:27
7:33
#2880
25.2M
25.20 mi12:49:192:49:186:432:55
8:27
#2959
Finish
26.22 mi12:57:552:57:546:478:36
8:26
#3455
Faster pace
Steady pace
Slower pace
Est.Checkpoint not recorded (estimated)
~Segment time uses estimated prior

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM45-49Seg. OverallSeg. MalesSeg. M45-49
5K3.11 mi3.11 mi1255118911891971(Top 7%)1887(Top 12%)1887(Top 84%)
10K6.21 mi3.10 mi1368-1131302-1131302-1131537(Top 6%)1469(Top 10%)1469(Top 65%)
15K9.32 mi3.11 mi1539-1711469-1671469-1671971(Top 7%)1887(Top 12%)1887(Top 84%)
20K12.43 mi3.11 mi1650-1111579-1101579-1102008(Top 8%)1927(Top 13%)1927(Top 86%)
Half13.11 mi0.68 mi1670-201598-191598-192151(Top 8%)2067(Top 14%)2067(Top 92%)
25K15.53 mi2.42 mi1754-841678-801678-802339(Top 9%)2241(Top 15%)2241(Top 100%)
30K18.64 mi3.11 mi1981-2271898-2201898-2203711(Top 14%)3483(Top 23%)3483(Top 155%)
20M20.00 mi1.36 mi2186-2052096-1982096-1985452(Top 20%)4883(Top 32%)4883(Top 217%)
21M21.00 mi1.00 mi2383-1972284-1882284-1887194(Top 27%)5972(Top 39%)5972(Top 265%)
35K21.75 mi0.75 mi2452-692348-642348-645509(Top 21%)4872(Top 32%)4872(Top 216%)
23M23.00 mi1.25 mi2582-1302469-1212469-1215906(Top 22%)5113(Top 34%)5113(Top 227%)
24M24.00 mi1.00 mi2725-1432598-1292598-1295898(Top 22%)5028(Top 33%)5028(Top 223%)
40K24.85 mi0.85 mi2880-1552737-1392737-1396919(Top 26%)5572(Top 37%)5572(Top 247%)
25.2M25.20 mi0.35 mi2959-792805-682805-689114(Top 34%)6774(Top 45%)6774(Top 301%)
Finish26.22 mi1.02 mi3455-4963256-4513256-45114944(Top 56%)9686(Top 64%)9686(Top 430%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 7%
×21stories
+97ft-345ft

Overall

1971

Males

1887

M45-49

1887

5K→10K

3.1 - 6.2 mi

Top 6%
×5stories
+79ft-138ft

Overall

1537

Males

1469

M45-49

1469

10K→15K

6.2 - 9.3 mi

Top 7%
×3stories
+67ft-78ft

Overall

1971

Males

1887

M45-49

1887

15K→20K

9.3 - 12.4 mi

Top 8%
×5stories
+106ft-86ft

Overall

2008

Males

1927

M45-49

1927

20K→Half

12.4 - 13.1 mi

Top 8%
×2stories
+19ft-37ft

Overall

2151

Males

2067

M45-49

2067

Half→25K

13.1 - 15.5 mi

Top 9%
×4stories
+66ft-88ft

Overall

2339

Males

2241

M45-49

2241

25K→30K

15.5 - 18.6 mi

Top 14%
×9stories
+181ft-148ft

Overall

3711

Males

3483

M45-49

3483

30K→20M

18.6 - 20.0 mi

Top 20%
×5stories
+64ft-50ft

Overall

5452

Males

4883

M45-49

4883

20M→21M

20.0 - 21.0 mi

Top 27%
×8stories
+106ft-24ft

Overall

7194

Males

5972

M45-49

5972

21M→35K

21.0 - 21.8 mi

Top 21%
×7stories
+17ft-86ft

Overall

5509

Males

4872

M45-49

4872

35K→23M

21.8 - 23.0 mi

Top 22%
×5stories
+23ft-63ft

Overall

5906

Males

5113

M45-49

5113

23M→24M

23.0 - 24.0 mi

Top 22%
×6stories
+12ft-82ft

Overall

5898

Males

5028

M45-49

5028

24M→40K

24.0 - 24.9 mi

Top 26%
×1story
+6ft-20ft

Overall

6919

Males

5572

M45-49

5572

40K→25.2M

24.9 - 25.2 mi

Top 34%
×1story
+13ft-16ft

Overall

9114

Males

6774

M45-49

6774

25.2M→Finish

25.2 - 26.2 mi

Top 56%
×2stories
+22ft-21ft

Overall

14944

Males

9686

M45-49

9686

Passing Analysis

Category:
Athletes Passed
166
Passed By
2366
Net Change
-2200
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#1255
5K → 10K37150-113#1255#1368
10K → 15K13184-171#1368#1539
15K → 20K18129-111#1539#1650
20K → Half727-20#1650#1670
Half → 25K1094-84#1670#1754
25K → 30K18245-227#1754#1981
30K → 20M8213-205#1981#2186
20M → 21M3200-197#2186#2383
21M → 35K1180-69#2383#2452
35K → 23M14144-130#2452#2582
23M → 24M10153-143#2582#2725
24M → 40K10165-155#2725#2880
40K → 25.2M685-79#2880#2959
25.2M → Finish1497-496#2959#3455
TOTALS1662366-2200
📊

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