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BOSTON MARATHON 2023

Iain Griffith

Bib: 31095•M

0:00
0:00
/ mi
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Overall
#0 / 26622
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
36:18
Rank: #26317
Start → 5K
36:18 | 11:41/mi
10K· 6.21 mi
1:14:01
Rank: #26350 (-33)
5K → 10K
37:43 | 12:08/mi
15K· 9.32 mi
1:52:09
Rank: #26312 (+38)
10K → 15K
38:08 | 12:16/mi
20K· 12.43 mi
2:30:06
Rank: #26188 (+124)
15K → 20K
37:57 | 12:13/mi
Half· 13.11 mi
2:38:19
Rank: #26191 (-3)
20K → Half
8:13 | 12:03/mi
25K· 15.53 mi
3:08:49
Rank: #26110 (+81)
Half → 25K
30:30 | 12:35/mi
30K· 18.64 mi
3:48:58
Rank: #26004 (+106)
25K → 30K
40:09 | 12:55/mi
20M
4:06:58
Rank: #25972 (+32)
30K → 20M
18:00 | 13:15/mi
21M
4:20:55
Rank: #25931 (+41)
20M → 21M
13:57 | 13:57/mi
35K· 21.75 mi
4:30:06
Rank: #25906 (+25)
21M → 35K
9:11 | 12:17/mi
23M
4:46:42
Rank: #25880 (+26)
35K → 23M
16:36 | 13:15/mi
24M
4:59:54
Rank: #25871 (+9)
23M → 24M
13:12 | 13:12/mi
40K· 24.85 mi
5:11:21
Rank: #25868 (+3)
24M → 40K
11:27 | 13:24/mi
25.2M
5:16:05
Rank: #25849 (+19)
40K → 25.2M
4:44 | 13:44/mi
Finish· 26.22 mi
5:28:03
Rank: #25833 (+16)
25.2M → Finish
11:58 | 11:45/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:38:19
Pace12:05 /mi
2nd Half
Distance13.11 mi
Time2:49:44
Pace12:57 /mi
📊Positive Split: 7.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi12:00:4336:1811:4136:18
11:41
-
10K
6.21 mi12:38:261:14:0111:5537:43
12:08
+0:27
15K
9.32 mi13:16:341:52:0912:0238:08
12:16
+0:08
20K
12.43 mi13:54:312:30:0612:0537:57
12:13
-0:03
Half
13.11 mi14:02:442:38:1912:058:13
12:03
-0:10
25K
15.53 mi14:33:143:08:4912:0930:30
12:35
+0:32
30K
18.64 mi15:13:233:48:5812:1740:09
12:55
+0:20
20M
20.00 mi15:31:234:06:5812:2118:00
13:15
+0:20
21M
21.00 mi15:45:204:20:5512:2513:57
13:57
+0:42
35K
21.75 mi15:54:314:30:0612:259:11
12:17
-1:40
23M
23.00 mi16:11:074:46:4212:2816:36
13:15
+0:58
24M
24.00 mi16:24:194:59:5412:3013:12
13:12
-0:03
40K
24.85 mi16:35:465:11:2112:3211:27
13:24
+0:12
25.2M
25.20 mi16:40:305:16:0512:334:44
13:44
+0:20
Finish
26.22 mi16:52:285:28:0312:3111:58
11:45
-1:59

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

11:41 /mi

Average Pace

12:31 /mi

Slowest Pace

13:57 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:29:58

64% of race

Time at Steady Pace

1:44:08

32% of race

Time at Slower Pace

13:57

4% of race

Average Pace: 12:31 /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 mi12:00:4336:1811:4136:18
11:41
#26317
10K
6.21 mi12:38:261:14:0111:5537:43
12:08
#26350
15K
9.32 mi13:16:341:52:0912:0238:08
12:16
#26312
20K
12.43 mi13:54:312:30:0612:0537:57
12:13
#26188
Half
13.11 mi14:02:442:38:1912:058:13
12:03
#26191
25K
15.53 mi14:33:143:08:4912:0930:30
12:35
#26110
30K
18.64 mi15:13:233:48:5812:1740:09
12:55
#26004
20M
20.00 mi15:31:234:06:5812:2118:00
13:15
#25972
21M
21.00 mi15:45:204:20:5512:2513:57
13:57
#25931
35K
21.75 mi15:54:314:30:0612:259:11
12:17
#25906
23M
23.00 mi16:11:074:46:4212:2816:36
13:15
#25880
24M
24.00 mi16:24:194:59:5412:3013:12
13:12
#25871
40K
24.85 mi16:35:465:11:2112:3211:27
13:24
#25868
25.2M
25.20 mi16:40:305:16:0512:334:44
13:44
#25849
Finish
26.22 mi16:52:285:28:0312:3111:58
11:45
#25833
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi26317150541505426218(Top 98%)15019(Top 99%)15019(Top 284%)
10K6.21 mi3.10 mi26350-3315066-1215066-1226338(Top 99%)15059(Top 99%)15059(Top 285%)
15K9.32 mi3.11 mi26312+3815053+1315053+1326218(Top 98%)15019(Top 99%)15019(Top 284%)
20K12.43 mi3.11 mi26188+12415009+4415009+4425779(Top 97%)14824(Top 98%)14824(Top 280%)
Half13.11 mi0.68 mi26191-315010-115010-125901(Top 97%)14875(Top 98%)14875(Top 281%)
25K15.53 mi2.42 mi26110+8114977+3314977+3325611(Top 96%)14733(Top 97%)14733(Top 279%)
30K18.64 mi3.11 mi26004+10614929+4814929+4825346(Top 95%)14564(Top 96%)14564(Top 276%)
20M20.00 mi1.36 mi25972+3214911+1814911+1825356(Top 95%)14554(Top 96%)14554(Top 275%)
21M21.00 mi1.00 mi25931+4114888+2314888+2324999(Top 94%)14372(Top 95%)14372(Top 272%)
35K21.75 mi0.75 mi25906+2514874+1414874+1424950(Top 94%)14300(Top 94%)14300(Top 271%)
23M23.00 mi1.25 mi25880+2614860+1414860+1425322(Top 95%)14496(Top 96%)14496(Top 274%)
24M24.00 mi1.00 mi25871+914856+414856+425613(Top 96%)14610(Top 96%)14610(Top 276%)
40K24.85 mi0.85 mi25868+314852+414852+425276(Top 95%)14444(Top 95%)14444(Top 273%)
25.2M25.20 mi0.35 mi25849+1914839+1314839+1324757(Top 93%)14169(Top 93%)14169(Top 268%)
Finish26.22 mi1.02 mi25833+1614826+1314826+1324982(Top 94%)14306(Top 94%)14306(Top 271%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 98%
×21stories
+97ft-345ft

Overall

26218

Males

15019

M18-39

15019

5K→10K

3.1 - 6.2 mi

Top 99%
×5stories
+79ft-138ft

Overall

26338

Males

15059

M18-39

15059

10K→15K

6.2 - 9.3 mi

Top 98%
×3stories
+67ft-78ft

Overall

26218

Males

15019

M18-39

15019

15K→20K

9.3 - 12.4 mi

Top 97%
×5stories
+106ft-86ft

Overall

25779

Males

14824

M18-39

14824

20K→Half

12.4 - 13.1 mi

Top 97%
×2stories
+19ft-37ft

Overall

25901

Males

14875

M18-39

14875

Half→25K

13.1 - 15.5 mi

Top 96%
×4stories
+66ft-88ft

Overall

25611

Males

14733

M18-39

14733

25K→30K

15.5 - 18.6 mi

Top 95%
×9stories
+181ft-148ft

Overall

25346

Males

14564

M18-39

14564

30K→20M

18.6 - 20.0 mi

Top 95%
×5stories
+64ft-50ft

Overall

25356

Males

14554

M18-39

14554

20M→21M

20.0 - 21.0 mi

Top 94%
×8stories
+106ft-24ft

Overall

24999

Males

14372

M18-39

14372

21M→35K

21.0 - 21.8 mi

Top 94%
×7stories
+17ft-86ft

Overall

24950

Males

14300

M18-39

14300

35K→23M

21.8 - 23.0 mi

Top 95%
×5stories
+23ft-63ft

Overall

25322

Males

14496

M18-39

14496

23M→24M

23.0 - 24.0 mi

Top 96%
×6stories
+12ft-82ft

Overall

25613

Males

14610

M18-39

14610

24M→40K

24.0 - 24.9 mi

Top 95%
×1story
+6ft-20ft

Overall

25276

Males

14444

M18-39

14444

40K→25.2M

24.9 - 25.2 mi

Top 93%
×1story
+13ft-16ft

Overall

24757

Males

14169

M18-39

14169

25.2M→Finish

25.2 - 26.2 mi

Top 94%
×2stories
+22ft-21ft

Overall

24982

Males

14306

M18-39

14306

Passing Analysis

Category:
Athletes Passed
638
Passed By
154
Net Change
+484
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#26317
5K → 10K3265-33#26317#26350
10K → 15K5719+38#26350#26312
15K → 20K1317+124#26312#26188
20K → Half47-3#26188#26191
Half → 25K854+81#26191#26110
25K → 30K1126+106#26110#26004
30K → 20M408+32#26004#25972
20M → 21M487+41#25972#25931
21M → 35K283+25#25931#25906
35K → 23M304+26#25906#25880
23M → 24M178+9#25880#25871
24M → 40K1411+3#25871#25868
40K → 25.2M201+19#25868#25849
25.2M → Finish204+16#25849#25833
TOTALS638154+484
📊

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