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BOSTON MARATHON 2023

Justin Griggs

Bib: 8953•M

NC

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 14%
Gender (Male)
#0 / 15176
Top 23%
Masters (Masters Men)
#0 / 9891
Top 10%
Division (M40-44)
#0 / 2241
Top 26%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
20:43
Rank: #3383
Start → 5K
20:43 | 6:40/mi
10K· 6.21 mi
41:39
Rank: #4007 (-624)
5K → 10K
20:56 | 6:44/mi
15K· 9.32 mi
1:02:32
Rank: #4103 (-96)
10K → 15K
20:53 | 6:43/mi
20K· 12.43 mi
1:23:24
Rank: #3975 (+128)
15K → 20K
20:52 | 6:43/mi
Half· 13.11 mi
1:27:58
Rank: #3980 (-5)
20K → Half
4:34 | 6:42/mi
25K· 15.53 mi
1:44:33
Rank: #4056 (-76)
Half → 25K
16:35 | 6:50/mi
30K· 18.64 mi
2:05:59
Rank: #3935 (+121)
25K → 30K
21:26 | 6:54/mi
20M
2:15:34
Rank: #3955 (-20)
30K → 20M
9:35 | 7:03/mi
21M
2:22:44
Rank: #3830 (+125)
20M → 21M
7:10 | 7:10/mi
35K· 21.75 mi
2:27:51
Rank: #3863 (-33)
21M → 35K
5:07 | 6:50/mi
23M
2:36:42
Rank: #3861 (+2)
35K → 23M
8:51 | 7:04/mi
24M
2:43:20
Rank: #3776 (+85)
23M → 24M
6:38 | 6:38/mi
40K· 24.85 mi
2:49:08
Rank: #3695 (+81)
24M → 40K
5:48 | 6:47/mi
25.2M
2:51:43
Rank: #3704 (-9)
40K → 25.2M
2:35 | 7:29/mi
Finish· 26.22 mi
2:58:37
Rank: #3709 (-5)
25.2M → Finish
6:54 | 6:46/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:27:58
Pace6:43 /mi
2nd Half
Distance13.11 mi
Time1:30:39
Pace6:55 /mi
📊Positive Split: 3.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:45:5320:436:4020:43
6:40
-
10K
6.21 mi11:06:4941:396:4220:56
6:44
+0:04
15K
9.32 mi11:27:421:02:326:4320:53
6:43
-0:01
20K
12.43 mi11:48:341:23:246:4320:52
6:43
0:00
Half
13.11 mi11:53:081:27:586:434:34
6:42
-0:01
25K
15.53 mi12:09:431:44:336:4416:35
6:50
+0:08
30K
18.64 mi12:31:092:05:596:4621:26
6:54
+0:04
20M
20.00 mi12:40:442:15:346:479:35
7:03
+0:09
21M
21.00 mi12:47:542:22:446:487:10
7:10
+0:07
35K
21.75 mi12:53:012:27:516:485:07
6:50
-0:20
23M
23.00 mi13:01:522:36:426:498:51
7:04
+0:14
24M
24.00 mi13:08:302:43:206:486:38
6:38
-0:26
40K
24.85 mi13:14:182:49:086:485:48
6:47
+0:09
25.2M
25.20 mi13:16:532:51:436:492:35
7:29
+0:42
Finish
26.22 mi13:23:472:58:376:496:54
6:46
-0:43

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

6:38 /mi

Average Pace

6:49 /mi

Slowest Pace

7:29 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:56:02

99% of race

Time at Steady Pace

2:35

1% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:49 /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 mi10:45:5320:436:4020:43
6:40
#3383
10K
6.21 mi11:06:4941:396:4220:56
6:44
#4007
15K
9.32 mi11:27:421:02:326:4320:53
6:43
#4103
20K
12.43 mi11:48:341:23:246:4320:52
6:43
#3975
Half
13.11 mi11:53:081:27:586:434:34
6:42
#3980
25K
15.53 mi12:09:431:44:336:4416:35
6:50
#4056
30K
18.64 mi12:31:092:05:596:4621:26
6:54
#3935
20M
20.00 mi12:40:442:15:346:479:35
7:03
#3955
21M
21.00 mi12:47:542:22:446:487:10
7:10
#3830
35K
21.75 mi12:53:012:27:516:485:07
6:50
#3863
23M
23.00 mi13:01:522:36:426:498:51
7:04
#3861
24M
24.00 mi13:08:302:43:206:486:38
6:38
#3776
40K
24.85 mi13:14:182:49:086:485:48
6:47
#3695
25.2M
25.20 mi13:16:532:51:436:492:35
7:29
#3704
Finish
26.22 mi13:23:472:58:376:496:54
6:46
#3709
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM40-44Seg. OverallSeg. MalesSeg. M40-44
5K3.11 mi3.11 mi3383319031904331(Top 16%)4056(Top 27%)4056(Top 181%)
10K6.21 mi3.10 mi4007-6243768-5783768-5784696(Top 18%)4369(Top 29%)4369(Top 195%)
15K9.32 mi3.11 mi4103-963857-893857-894331(Top 16%)4056(Top 27%)4056(Top 181%)
20K12.43 mi3.11 mi3975+1283741+1163741+1163700(Top 14%)3499(Top 23%)3499(Top 156%)
Half13.11 mi0.68 mi3980-53743-23743-24225(Top 16%)3949(Top 26%)3949(Top 176%)
25K15.53 mi2.42 mi4056-763811-683811-684474(Top 17%)4166(Top 27%)4166(Top 186%)
30K18.64 mi3.11 mi3935+1213707+1043707+1043650(Top 14%)3429(Top 23%)3429(Top 153%)
20M20.00 mi1.36 mi3955-203720-133720-134319(Top 16%)3979(Top 26%)3979(Top 178%)
21M21.00 mi1.00 mi3830+1253607+1133607+1132937(Top 11%)2754(Top 18%)2754(Top 123%)
35K21.75 mi0.75 mi3863-333634-273634-274404(Top 17%)4022(Top 27%)4022(Top 179%)
23M23.00 mi1.25 mi3861+23632+23632+24122(Top 15%)3778(Top 25%)3778(Top 169%)
24M24.00 mi1.00 mi3776+853551+813551+812769(Top 10%)2578(Top 17%)2578(Top 115%)
40K24.85 mi0.85 mi3695+813475+763475+762761(Top 10%)2547(Top 17%)2547(Top 114%)
25.2M25.20 mi0.35 mi3704-93483-83483-83816(Top 14%)3406(Top 22%)3406(Top 152%)
Finish26.22 mi1.02 mi3709-5348334833887(Top 15%)3443(Top 23%)3443(Top 154%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 16%
×21stories
+97ft-345ft

Overall

4331

Males

4056

M40-44

4056

5K→10K

3.1 - 6.2 mi

Top 18%
×5stories
+79ft-138ft

Overall

4696

Males

4369

M40-44

4369

10K→15K

6.2 - 9.3 mi

Top 16%
×3stories
+67ft-78ft

Overall

4331

Males

4056

M40-44

4056

15K→20K

9.3 - 12.4 mi

Top 14%
×5stories
+106ft-86ft

Overall

3700

Males

3499

M40-44

3499

20K→Half

12.4 - 13.1 mi

Top 16%
×2stories
+19ft-37ft

Overall

4225

Males

3949

M40-44

3949

Half→25K

13.1 - 15.5 mi

Top 17%
×4stories
+66ft-88ft

Overall

4474

Males

4166

M40-44

4166

25K→30K

15.5 - 18.6 mi

Top 14%
×9stories
+181ft-148ft

Overall

3650

Males

3429

M40-44

3429

30K→20M

18.6 - 20.0 mi

Top 16%
×5stories
+64ft-50ft

Overall

4319

Males

3979

M40-44

3979

20M→21M

20.0 - 21.0 mi

Top 11%
×8stories
+106ft-24ft

Overall

2937

Males

2754

M40-44

2754

21M→35K

21.0 - 21.8 mi

Top 17%
×7stories
+17ft-86ft

Overall

4404

Males

4022

M40-44

4022

35K→23M

21.8 - 23.0 mi

Top 15%
×5stories
+23ft-63ft

Overall

4122

Males

3778

M40-44

3778

23M→24M

23.0 - 24.0 mi

Top 10%
×6stories
+12ft-82ft

Overall

2769

Males

2578

M40-44

2578

24M→40K

24.0 - 24.9 mi

Top 10%
×1story
+6ft-20ft

Overall

2761

Males

2547

M40-44

2547

40K→25.2M

24.9 - 25.2 mi

Top 14%
×1story
+13ft-16ft

Overall

3816

Males

3406

M40-44

3406

25.2M→Finish

25.2 - 26.2 mi

Top 15%
×2stories
+22ft-21ft

Overall

3887

Males

3443

M40-44

3443

Passing Analysis

Category:
Athletes Passed
1077
Passed By
1403
Net Change
-326
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#3383
5K → 10K41665-624#3383#4007
10K → 15K81177-96#4007#4103
15K → 20K18052+128#4103#3975
20K → Half1520-5#3975#3980
Half → 25K53129-76#3980#4056
25K → 30K17150+121#4056#3935
30K → 20M5878-20#3935#3955
20M → 21M13813+125#3955#3830
21M → 35K1952-33#3830#3863
35K → 23M5856+2#3863#3861
23M → 24M9611+85#3861#3776
24M → 40K9211+81#3776#3695
40K → 25.2M2130-9#3695#3704
25.2M → Finish5459-5#3704#3709
TOTALS10771403-326
📊

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