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BOSTON MARATHON 2023

Stephen Griffin

Bib: 31188 M IE

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Male)
#0 / 15176
Masters (Masters Men)
#0 / 9891
Division (M50-54)
#0 / 2052
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
469 ft elev
5K· 3.11 mi
9:27/mi
29:22
↑ 97↓ 3451.5%
220 ft elev
10K· 6.21 mi
9:46/mi
59:42
↑ 79↓ 1380.4%
157 ft elev
15K· 9.32 mi
9:34/mi
1:29:24
↑ 67↓ 78
146 ft elev
20K· 12.43 mi
9:49/mi
1:59:54
↑ 106↓ 860.1%
165 ft elev
Half· 13.11 mi
9:08/mi
2:06:08
↑ 19↓ 370.5%
148 ft elev
25K· 15.53 mi
9:48/mi
2:29:53
↑ 66↓ 880.2%
127 ft elev
30K· 18.64 mi
10:11/mi
3:01:31
↑ 181↓ 1480.2%
138 ft elev
20M
9:44/mi
3:14:44
↑ 64↓ 500.2%
148 ft elev
21M
10:36/mi
3:25:20
↑ 106↓ 241.6%
227 ft elev
35K· 21.75 mi
10:14/mi
3:32:59
↑ 17↓ 861.7%
156 ft elev
23M
9:35/mi
3:44:59
↑ 23↓ 630.6%
116 ft elev
24M
9:20/mi
3:54:19
↓ 821.3%
34 ft elev
40K· 24.85 mi
11:18/mi
4:03:59
↓ 200.3%
20 ft elev
25.2M
10:18/mi
4:07:32
↑ 13↓ 160.2%
18 ft elev
Finish· 26.22 mi
9:10/mi
4:16:52
↑ 22↓ 21
17 ft elev
Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:06:08
Pace9:37 /mi
2nd Half
Distance13.11 mi
Time2:10:44
Pace9:58 /mi
📊Positive Split: 3.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:50:2729:229:2729:22
9:27
-
10K
6.21 mi12:20:4759:429:3630:20
9:46
+0:19
15K
9.32 mi12:50:291:29:249:3629:42
9:34
-0:12
20K
12.43 mi13:20:591:59:549:3930:30
9:49
+0:15
Half
13.11 mi13:27:132:06:089:376:14
9:08
-0:41
25K
15.53 mi13:50:582:29:539:3923:45
9:48
+0:40
30K
18.64 mi14:22:363:01:319:4431:38
10:11
+0:23
20M
20.00 mi14:35:493:14:449:4413:13
9:44
-0:27
21M
21.00 mi14:46:253:25:209:4710:36
10:36
+0:52
35K
21.75 mi14:54:043:32:599:487:39
10:14
-0:22
23M
23.00 mi15:06:043:44:599:4712:00
9:35
-0:39
24M
24.00 mi15:15:243:54:199:469:20
9:20
-0:15
40K
24.85 mi15:25:044:03:599:499:40
11:18
+1:58
25.2M
25.20 mi15:28:374:07:329:493:33
10:18
-1:00
Finish
26.22 mi15:37:574:16:529:489:20
9:10
-1:08

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

9:08 /mi

Average Pace

9:48 /mi

Slowest Pace

11:18 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

54:16

21% of race

Time at Steady Pace

2:19:30

54% of race

Time at Slower Pace

1:03:06

25% of race

Average Pace: 9:48 /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 mi11:50:2729:229:2729:22
9:27
#21953
10K
6.21 mi12:20:4759:429:3630:20
9:46
#22626
15K
9.32 mi12:50:291:29:249:3629:42
9:34
#22567
20K
12.43 mi13:20:591:59:549:3930:30
9:49
#22547
Half
13.11 mi13:27:132:06:089:376:14
9:08
#22467
25K
15.53 mi13:50:582:29:539:3923:45
9:48
#22341
30K
18.64 mi14:22:363:01:319:4431:38
10:11
#22180
20M
20.00 mi14:35:493:14:449:4413:13
9:44
#21978
21M
21.00 mi14:46:253:25:209:4710:36
10:36
#21871
35K
21.75 mi14:54:043:32:599:487:39
10:14
#21872
23M
23.00 mi15:06:043:44:599:4712:00
9:35
#21688
24M
24.00 mi15:15:243:54:199:469:20
9:20
#21571
40K
24.85 mi15:25:044:03:599:499:40
11:18
#21661
25.2M
25.20 mi15:28:374:07:329:493:33
10:18
#21604
Finish
26.22 mi15:37:574:16:529:489:20
9:10
#21503
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
5K3.11 mi3.11 mi21953130741307422412(Top 84%)13372(Top 88%)13372(Top 652%)
10K6.21 mi3.10 mi22626-67313442-36813442-36823191(Top 87%)13728(Top 90%)13728(Top 669%)
15K9.32 mi3.11 mi22567+5913420+2213420+2222412(Top 84%)13372(Top 88%)13372(Top 652%)
20K12.43 mi3.11 mi22547+2013413+713413+722446(Top 84%)13372(Top 88%)13372(Top 652%)
Half13.11 mi0.68 mi22467+8013376+3713376+3720939(Top 79%)12707(Top 84%)12707(Top 619%)
25K15.53 mi2.42 mi22341+12613296+8013296+8021718(Top 82%)13012(Top 86%)13012(Top 634%)
30K18.64 mi3.11 mi22180+16113224+7213224+7221490(Top 81%)12840(Top 85%)12840(Top 626%)
20M20.00 mi1.36 mi21978+20213123+10113123+10119627(Top 74%)11958(Top 79%)11958(Top 583%)
21M21.00 mi1.00 mi21871+10713067+5613067+5619885(Top 75%)12001(Top 79%)12001(Top 585%)
35K21.75 mi0.75 mi21872-113062+513062+521825(Top 82%)12852(Top 85%)12852(Top 626%)
23M23.00 mi1.25 mi21688+18412959+10312959+10318666(Top 70%)11429(Top 75%)11429(Top 557%)
24M24.00 mi1.00 mi21571+11712896+6312896+6318600(Top 70%)11361(Top 75%)11361(Top 554%)
40K24.85 mi0.85 mi21661-9012925-2912925-2922903(Top 86%)13268(Top 87%)13268(Top 647%)
25.2M25.20 mi0.35 mi21604+5712896+2912896+2918446(Top 69%)11238(Top 74%)11238(Top 548%)
Finish26.22 mi1.02 mi21503+10112844+5212844+5218728(Top 70%)11418(Top 75%)11418(Top 556%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 84%
×21story building
+97ft-345ft

Overall

22412

Males

13372

M50-54

13372

5K→10K

3.1 - 6.2 mi

Top 87%
×5story building
+79ft-138ft

Overall

23191

Males

13728

M50-54

13728

10K→15K

6.2 - 9.3 mi

Top 84%
×3story building
+67ft-78ft

Overall

22412

Males

13372

M50-54

13372

15K→20K

9.3 - 12.4 mi

Top 84%
×5story building
+106ft-86ft

Overall

22446

Males

13372

M50-54

13372

20K→Half

12.4 - 13.1 mi

Top 79%
×2story building
+19ft-37ft

Overall

20939

Males

12707

M50-54

12707

Half→25K

13.1 - 15.5 mi

Top 82%
×4story building
+66ft-88ft

Overall

21718

Males

13012

M50-54

13012

25K→30K

15.5 - 18.6 mi

Top 81%
×9story building
+181ft-148ft

Overall

21490

Males

12840

M50-54

12840

30K→20M

18.6 - 20.0 mi

Top 74%
×5story building
+64ft-50ft

Overall

19627

Males

11958

M50-54

11958

20M→21M

20.0 - 21.0 mi

Top 75%
×8story building
+106ft-24ft

Overall

19885

Males

12001

M50-54

12001

21M→35K

21.0 - 21.8 mi

Top 82%
×7story building
+17ft-86ft

Overall

21825

Males

12852

M50-54

12852

35K→23M

21.8 - 23.0 mi

Top 70%
×5story building
+23ft-63ft

Overall

18666

Males

11429

M50-54

11429

23M→24M

23.0 - 24.0 mi

Top 70%
×6story building
+12ft-82ft

Overall

18600

Males

11361

M50-54

11361

24M→40K

24.0 - 24.9 mi

Top 86%
×1story
+6ft-20ft

Overall

22903

Males

13268

M50-54

13268

40K→25.2M

24.9 - 25.2 mi

Top 69%
×1story
+13ft-16ft

Overall

18446

Males

11238

M50-54

11238

25.2M→Finish

25.2 - 26.2 mi

Top 70%
×2story building
+22ft-21ft

Overall

18728

Males

11418

M50-54

11418

Passing Analysis

Category:
Athletes Passed
1666
Passed By
1216
Net Change
+450
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#21953
5K → 10K50723-673#21953#22626
10K → 15K171112+59#22626#22567
15K → 20K145125+20#22567#22547
20K → Half811+80#22547#22467
Half → 25K16741+126#22467#22341
25K → 30K20443+161#22341#22180
30K → 20M2031+202#22180#21978
20M → 21M12316+107#21978#21871
21M → 35K2526-1#21871#21872
35K → 23M1862+184#21872#21688
23M → 24M1258+117#21688#21571
24M → 40K18108-90#21571#21661
40K → 25.2M592+57#21661#21604
25.2M → Finish1098+101#21604#21503
TOTALS16661216+450
📊

Passing Visuals

Category:
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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