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BOSTON MARATHON 2023

Griffin Knowlton

Bib: 26723•M

MA

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 39%
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
22:57
Rank: #8726
Start → 5K
22:57 | 7:23/mi
10K· 6.21 mi
45:46
Rank: #8928 (-202)
5K → 10K
22:49 | 7:21/mi
15K· 9.32 mi
1:08:34
Rank: #8887 (+41)
10K → 15K
22:48 | 7:20/mi
20K· 12.43 mi
1:31:34
Rank: #8753 (+134)
15K → 20K
23:00 | 7:24/mi
Half· 13.11 mi
1:36:33
Rank: #8747 (+6)
20K → Half
4:59 | 7:18/mi
25K· 15.53 mi
1:55:59
Rank: #9362 (-615)
Half → 25K
19:26 | 8:01/mi
30K· 18.64 mi
2:21:44
Rank: #9996 (-634)
25K → 30K
25:45 | 8:17/mi
20M
2:32:54
Rank: #10115 (-119)
30K → 20M
11:10 | 8:13/mi
21M
2:42:10
Rank: #10405 (-290)
20M → 21M
9:16 | 9:16/mi
35K· 21.75 mi
2:48:11
Rank: #10446 (-41)
21M → 35K
6:01 | 8:03/mi
23M
2:58:33
Rank: #10500 (-54)
35K → 23M
10:22 | 8:17/mi
24M
3:06:39
Rank: #10558 (-58)
23M → 24M
8:06 | 8:06/mi
40K· 24.85 mi
3:13:37
Rank: #10546 (+12)
24M → 40K
6:58 | 8:09/mi
25.2M
3:16:32
Rank: #10517 (+29)
40K → 25.2M
2:55 | 8:27/mi
Finish· 26.22 mi
3:24:13
Rank: #10422 (+95)
25.2M → Finish
7:41 | 7:32/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:36:33
Pace7:22 /mi
2nd Half
Distance13.11 mi
Time1:47:40
Pace8:13 /mi
📊Positive Split: 11.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:39:1522:577:2322:57
7:23
-
10K
6.21 mi12:02:0445:467:2222:49
7:21
-0:02
15K
9.32 mi12:24:521:08:347:2122:48
7:20
-0:01
20K
12.43 mi12:47:521:31:347:2223:00
7:24
+0:04
Half
13.11 mi12:52:511:36:337:224:59
7:18
-0:06
25K
15.53 mi13:12:171:55:597:2819:26
8:01
+0:43
30K
18.64 mi13:38:022:21:447:3625:45
8:17
+0:16
20M
20.00 mi13:49:122:32:547:3911:10
8:13
-0:04
21M
21.00 mi13:58:282:42:107:439:16
9:16
+1:03
35K
21.75 mi14:04:292:48:117:446:01
8:03
-1:13
23M
23.00 mi14:14:512:58:337:4610:22
8:17
+0:14
24M
24.00 mi14:22:573:06:397:478:06
8:06
-0:11
40K
24.85 mi14:29:553:13:377:476:58
8:09
+0:03
25.2M
25.20 mi14:32:503:16:327:482:55
8:27
+0:18
Finish
26.22 mi14:40:313:24:137:487:41
7:32
-0:55

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

7:18 /mi

Average Pace

7:48 /mi

Slowest Pace

9:16 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:44:14

51% of race

Time at Steady Pace

1:27:48

43% of race

Time at Slower Pace

12:11

6% of race

Average Pace: 7:47 /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 mi11:39:1522:577:2322:57
7:23
#8726
10K
6.21 mi12:02:0445:467:2222:49
7:21
#8928
15K
9.32 mi12:24:521:08:347:2122:48
7:20
#8887
20K
12.43 mi12:47:521:31:347:2223:00
7:24
#8753
Half
13.11 mi12:52:511:36:337:224:59
7:18
#8747
25K
15.53 mi13:12:171:55:597:2819:26
8:01
#9362
30K
18.64 mi13:38:022:21:447:3625:45
8:17
#9996
20M
20.00 mi13:49:122:32:547:3911:10
8:13
#10115
21M
21.00 mi13:58:282:42:107:439:16
9:16
#10405
35K
21.75 mi14:04:292:48:117:446:01
8:03
#10446
23M
23.00 mi14:14:512:58:337:4610:22
8:17
#10500
24M
24.00 mi14:22:573:06:397:478:06
8:06
#10558
40K
24.85 mi14:29:553:13:377:476:58
8:09
#10546
25.2M
25.20 mi14:32:503:16:327:482:55
8:27
#10517
Finish
26.22 mi14:40:313:24:137:487:41
7:32
#10422
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi8726743574358863(Top 33%)7459(Top 49%)7459(Top 141%)
10K6.21 mi3.10 mi8928-2027535-1007535-1009181(Top 34%)7686(Top 51%)7686(Top 145%)
15K9.32 mi3.11 mi8887+417496+397496+398863(Top 33%)7459(Top 49%)7459(Top 141%)
20K12.43 mi3.11 mi8753+1347411+857411+858538(Top 32%)7222(Top 48%)7222(Top 137%)
Half13.11 mi0.68 mi8747+67400+117400+118647(Top 32%)7311(Top 48%)7311(Top 138%)
25K15.53 mi2.42 mi9362-6157762-3627762-36212843(Top 48%)9275(Top 61%)9275(Top 175%)
30K18.64 mi3.11 mi9996-6348093-3318093-33112941(Top 49%)9202(Top 61%)9202(Top 174%)
20M20.00 mi1.36 mi10115-1198121-288121-2811786(Top 44%)8613(Top 57%)8613(Top 163%)
21M21.00 mi1.00 mi10405-2908239-1188239-11814772(Top 55%)9831(Top 65%)9831(Top 186%)
35K21.75 mi0.75 mi10446-418240-18240-112379(Top 46%)8713(Top 57%)8713(Top 165%)
23M23.00 mi1.25 mi10500-548237+38237+311712(Top 44%)8330(Top 55%)8330(Top 158%)
24M24.00 mi1.00 mi10558-588231+68231+611904(Top 45%)8345(Top 55%)8345(Top 158%)
40K24.85 mi0.85 mi10546+128197+348197+3411000(Top 41%)7839(Top 52%)7839(Top 148%)
25.2M25.20 mi0.35 mi10517+298174+238174+239216(Top 35%)6876(Top 45%)6876(Top 130%)
Finish26.22 mi1.02 mi10422+958102+728102+728828(Top 33%)6656(Top 44%)6656(Top 126%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 33%
×21stories
+97ft-345ft

Overall

8863

Males

7459

M18-39

7459

5K→10K

3.1 - 6.2 mi

Top 34%
×5stories
+79ft-138ft

Overall

9181

Males

7686

M18-39

7686

10K→15K

6.2 - 9.3 mi

Top 33%
×3stories
+67ft-78ft

Overall

8863

Males

7459

M18-39

7459

15K→20K

9.3 - 12.4 mi

Top 32%
×5stories
+106ft-86ft

Overall

8538

Males

7222

M18-39

7222

20K→Half

12.4 - 13.1 mi

Top 32%
×2stories
+19ft-37ft

Overall

8647

Males

7311

M18-39

7311

Half→25K

13.1 - 15.5 mi

Top 48%
×4stories
+66ft-88ft

Overall

12843

Males

9275

M18-39

9275

25K→30K

15.5 - 18.6 mi

Top 49%
×9stories
+181ft-148ft

Overall

12941

Males

9202

M18-39

9202

30K→20M

18.6 - 20.0 mi

Top 44%
×5stories
+64ft-50ft

Overall

11786

Males

8613

M18-39

8613

20M→21M

20.0 - 21.0 mi

Top 55%
×8stories
+106ft-24ft

Overall

14772

Males

9831

M18-39

9831

21M→35K

21.0 - 21.8 mi

Top 46%
×7stories
+17ft-86ft

Overall

12379

Males

8713

M18-39

8713

35K→23M

21.8 - 23.0 mi

Top 44%
×5stories
+23ft-63ft

Overall

11712

Males

8330

M18-39

8330

23M→24M

23.0 - 24.0 mi

Top 45%
×6stories
+12ft-82ft

Overall

11904

Males

8345

M18-39

8345

24M→40K

24.0 - 24.9 mi

Top 41%
×1story
+6ft-20ft

Overall

11000

Males

7839

M18-39

7839

40K→25.2M

24.9 - 25.2 mi

Top 35%
×1story
+13ft-16ft

Overall

9216

Males

6876

M18-39

6876

25.2M→Finish

25.2 - 26.2 mi

Top 33%
×2stories
+22ft-21ft

Overall

8828

Males

6656

M18-39

6656

Passing Analysis

Category:
Athletes Passed
1100*
Passed By
2795
Net Change
-1696
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#8726
5K → 10K184386-202#8726#8928
10K → 15K164123+41#8928#8887
15K → 20K19258+134#8887#8753
20K → Half2519+6#8753#8747
Half → 25K13628-615#8747#9362
25K → 30K41*675-634#9362#9996
30K → 20M55173-119#9996#10115
20M → 21M33323-290#10115#10405
21M → 35K3677-41#10405#10446
35K → 23M59113-54#10446#10500
23M → 24M55113-58#10500#10558
24M → 40K7462+12#10558#10546
40K → 25.2M4314+29#10546#10517
25.2M → Finish12631+95#10517#10422
TOTALS1100*2795-1696

* 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