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BOSTON MARATHON 2023

Zach Griffin

Bib: 20198•M

CA

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Male)
#0 / 15176
Masters (Masters Men)
#0 / 9891
Division (M60-64)
#0 / 1110
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
27:35
Rank: #19886
Start → 5K
27:35 | 8:53/mi
10K· 6.21 mi
54:44
Rank: #19725 (+161)
5K → 10K
27:09 | 8:44/mi
15K· 9.32 mi
1:24:44
Rank: #21002 (-1277)
10K → 15K
30:00 | 9:39/mi
20K· 12.43 mi
1:55:22
Rank: #21455 (-453)
15K → 20K
30:38 | 9:52/mi
Half· 13.11 mi
2:01:48
Rank: #21470 (-15)
20K → Half
6:26 | 9:26/mi
25K· 15.53 mi
2:26:33
Rank: #21678 (-208)
Half → 25K
24:45 | 10:12/mi
30K· 18.64 mi
3:00:10
Rank: #21960 (-282)
25K → 30K
33:37 | 10:49/mi
20M
3:14:36
Rank: #21961 (-1)
30K → 20M
14:26 | 10:37/mi
21M
3:25:28
Rank: #21890 (+71)
20M → 21M
10:52 | 10:52/mi
35K· 21.75 mi
3:32:53
Rank: #21863 (+27)
21M → 35K
7:25 | 9:55/mi
23M
3:45:45
Rank: #21792 (+71)
35K → 23M
12:52 | 10:17/mi
24M
3:55:35
Rank: #21733 (+59)
23M → 24M
9:50 | 9:50/mi
40K· 24.85 mi
4:04:20
Rank: #21689 (+44)
24M → 40K
8:45 | 10:14/mi
25.2M
4:08:08
Rank: #21674 (+15)
40K → 25.2M
3:48 | 11:01/mi
Finish· 26.22 mi
4:17:56
Rank: #21628 (+46)
25.2M → Finish
9:48 | 9:37/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:01:48
Pace9:17 /mi
2nd Half
Distance13.11 mi
Time2:16:08
Pace10:23 /mi
📊Positive Split: 11.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:23:2427:358:5327:35
8:53
-
10K
6.21 mi11:50:3354:448:4927:09
8:44
-0:09
15K
9.32 mi12:20:331:24:449:0530:00
9:39
+0:55
20K
12.43 mi12:51:111:55:229:1730:38
9:52
+0:13
Half
13.11 mi12:57:372:01:489:176:26
9:26
-0:26
25K
15.53 mi13:22:222:26:339:2624:45
10:12
+0:46
30K
18.64 mi13:55:593:00:109:4033:37
10:49
+0:37
20M
20.00 mi14:10:253:14:369:4414:26
10:37
-0:12
21M
21.00 mi14:21:173:25:289:4710:52
10:52
+0:15
35K
21.75 mi14:28:423:32:539:477:25
9:55
-0:57
23M
23.00 mi14:41:343:45:459:4912:52
10:17
+0:22
24M
24.00 mi14:51:243:55:359:499:50
9:50
-0:27
40K
24.85 mi15:00:094:04:209:508:45
10:14
+0:24
25.2M
25.20 mi15:03:574:08:089:513:48
11:01
+0:47
Finish
26.22 mi15:13:454:17:569:519:48
9:37
-1:24

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

8:44 /mi

Average Pace

9:51 /mi

Slowest Pace

11:01 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:01:10

24% of race

Time at Steady Pace

2:01:11

47% of race

Time at Slower Pace

1:15:35

29% of race

Average Pace: 9:50 /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 mi11:23:2427:358:5327:35
8:53
#19886
10K
6.21 mi11:50:3354:448:4927:09
8:44
#19725
15K
9.32 mi12:20:331:24:449:0530:00
9:39
#21002
20K
12.43 mi12:51:111:55:229:1730:38
9:52
#21455
Half
13.11 mi12:57:372:01:489:176:26
9:26
#21470
25K
15.53 mi13:22:222:26:339:2624:45
10:12
#21678
30K
18.64 mi13:55:593:00:109:4033:37
10:49
#21960
20M
20.00 mi14:10:253:14:369:4414:26
10:37
#21961
21M
21.00 mi14:21:173:25:289:4710:52
10:52
#21890
35K
21.75 mi14:28:423:32:539:477:25
9:55
#21863
23M
23.00 mi14:41:343:45:459:4912:52
10:17
#21792
24M
24.00 mi14:51:243:55:359:499:50
9:50
#21733
40K
24.85 mi15:00:094:04:209:508:45
10:14
#21689
25.2M
25.20 mi15:03:574:08:089:513:48
11:01
#21674
Finish
26.22 mi15:13:454:17:569:519:48
9:37
#21628
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM60-64Seg. OverallSeg. MalesSeg. M60-64
5K3.11 mi3.11 mi19886121321213222678(Top 85%)13481(Top 89%)13481(Top 1215%)
10K6.21 mi3.10 mi19725+16112099+3312099+3319624(Top 74%)12140(Top 80%)12140(Top 1094%)
15K9.32 mi3.11 mi21002-127712695-59612695-59622678(Top 85%)13481(Top 89%)13481(Top 1215%)
20K12.43 mi3.11 mi21455-45312903-20812903-20822543(Top 85%)13416(Top 88%)13416(Top 1209%)
Half13.11 mi0.68 mi21470-1512920-1712920-1721890(Top 82%)13142(Top 87%)13142(Top 1184%)
25K15.53 mi2.42 mi21678-20813014-9413014-9422621(Top 85%)13419(Top 88%)13419(Top 1209%)
30K18.64 mi3.11 mi21960-28213124-11013124-11022825(Top 86%)13437(Top 89%)13437(Top 1211%)
20M20.00 mi1.36 mi21961-113118+613118+621983(Top 83%)12992(Top 86%)12992(Top 1170%)
21M21.00 mi1.00 mi21890+7113076+4213076+4220528(Top 77%)12303(Top 81%)12303(Top 1108%)
35K21.75 mi0.75 mi21863+2713056+2013056+2021032(Top 79%)12505(Top 82%)12505(Top 1127%)
23M23.00 mi1.25 mi21792+7113005+5113005+5120776(Top 78%)12361(Top 81%)12361(Top 1114%)
24M24.00 mi1.00 mi21733+5912971+3412971+3420329(Top 76%)12139(Top 80%)12139(Top 1094%)
40K24.85 mi0.85 mi21689+4412937+3412937+3420572(Top 77%)12189(Top 80%)12189(Top 1098%)
25.2M25.20 mi0.35 mi21674+1512922+1512922+1520496(Top 77%)12163(Top 80%)12163(Top 1096%)
Finish26.22 mi1.02 mi21628+4612897+2512897+2520523(Top 77%)12199(Top 80%)12199(Top 1099%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 85%
×21stories
+97ft-345ft

Overall

22678

Males

13481

M60-64

13481

5K→10K

3.1 - 6.2 mi

Top 74%
×5stories
+79ft-138ft

Overall

19624

Males

12140

M60-64

12140

10K→15K

6.2 - 9.3 mi

Top 85%
×3stories
+67ft-78ft

Overall

22678

Males

13481

M60-64

13481

15K→20K

9.3 - 12.4 mi

Top 85%
×5stories
+106ft-86ft

Overall

22543

Males

13416

M60-64

13416

20K→Half

12.4 - 13.1 mi

Top 82%
×2stories
+19ft-37ft

Overall

21890

Males

13142

M60-64

13142

Half→25K

13.1 - 15.5 mi

Top 85%
×4stories
+66ft-88ft

Overall

22621

Males

13419

M60-64

13419

25K→30K

15.5 - 18.6 mi

Top 86%
×9stories
+181ft-148ft

Overall

22825

Males

13437

M60-64

13437

30K→20M

18.6 - 20.0 mi

Top 83%
×5stories
+64ft-50ft

Overall

21983

Males

12992

M60-64

12992

20M→21M

20.0 - 21.0 mi

Top 77%
×8stories
+106ft-24ft

Overall

20528

Males

12303

M60-64

12303

21M→35K

21.0 - 21.8 mi

Top 79%
×7stories
+17ft-86ft

Overall

21032

Males

12505

M60-64

12505

35K→23M

21.8 - 23.0 mi

Top 78%
×5stories
+23ft-63ft

Overall

20776

Males

12361

M60-64

12361

23M→24M

23.0 - 24.0 mi

Top 76%
×6stories
+12ft-82ft

Overall

20329

Males

12139

M60-64

12139

24M→40K

24.0 - 24.9 mi

Top 77%
×1story
+6ft-20ft

Overall

20572

Males

12189

M60-64

12189

40K→25.2M

24.9 - 25.2 mi

Top 77%
×1story
+13ft-16ft

Overall

20496

Males

12163

M60-64

12163

25.2M→Finish

25.2 - 26.2 mi

Top 77%
×2stories
+22ft-21ft

Overall

20523

Males

12199

M60-64

12199

Passing Analysis

Category:
Athletes Passed
1109
Passed By
2851
Net Change
-1742
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#19886
5K → 10K396235+161#19886#19725
10K → 15K151292-1277#19725#21002
15K → 20K37490-453#21002#21455
20K → Half2136-15#21455#21470
Half → 25K50258-208#21470#21678
25K → 30K70352-282#21678#21960
30K → 20M6566-1#21960#21961
20M → 21M10029+71#21961#21890
21M → 35K4013+27#21890#21863
35K → 23M10130+71#21863#21792
23M → 24M7314+59#21792#21733
24M → 40K5915+44#21733#21689
40K → 25.2M238+15#21689#21674
25.2M → Finish5913+46#21674#21628
TOTALS11092851-1742
📊

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