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BOSTON MARATHON 2023

Glen Duffy

Bib: 29124•M

MA

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
25:46
Rank: #16093
Start → 5K
25:46 | 8:18/mi
10K· 6.21 mi
53:10
Rank: #18226 (-2133)
5K → 10K
27:24 | 8:49/mi
15K· 9.32 mi
1:20:21
Rank: #18593 (-367)
10K → 15K
27:11 | 8:45/mi
20K· 12.43 mi
1:47:12
Rank: #18356 (+237)
15K → 20K
26:51 | 8:39/mi
Half· 13.11 mi
1:52:57
Rank: #18297 (+59)
20K → Half
5:45 | 8:26/mi
25K· 15.53 mi
2:14:16
Rank: #18228 (+69)
Half → 25K
21:19 | 8:48/mi
30K· 18.64 mi
2:43:16
Rank: #18324 (-96)
25K → 30K
29:00 | 9:20/mi
20M
2:56:08
Rank: #18372 (-48)
30K → 20M
12:52 | 9:28/mi
21M
3:06:56
Rank: #18558 (-186)
20M → 21M
10:48 | 10:48/mi
35K· 21.75 mi
3:13:55
Rank: #18578 (-20)
21M → 35K
6:59 | 9:20/mi
23M
3:25:44
Rank: #18549 (+29)
35K → 23M
11:49 | 9:26/mi
24M
3:35:17
Rank: #18595 (-46)
23M → 24M
9:33 | 9:33/mi
40K· 24.85 mi
3:43:28
Rank: #18604 (-9)
24M → 40K
8:11 | 9:34/mi
25.2M
3:46:56
Rank: #18596 (+8)
40K → 25.2M
3:28 | 10:03/mi
Finish· 26.22 mi
3:56:12
Rank: #18598 (-2)
25.2M → Finish
9:16 | 9:06/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:52:57
Pace8:37 /mi
2nd Half
Distance13.11 mi
Time2:03:15
Pace9:24 /mi
📊Positive Split: 9.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:43:0725:468:1825:46
8:18
-
10K
6.21 mi12:10:3153:108:3327:24
8:49
+0:31
15K
9.32 mi12:37:421:20:218:3727:11
8:45
-0:04
20K
12.43 mi13:04:331:47:128:3826:51
8:39
-0:06
Half
13.11 mi13:10:181:52:578:375:45
8:26
-0:13
25K
15.53 mi13:31:372:14:168:3921:19
8:48
+0:22
30K
18.64 mi14:00:372:43:168:4629:00
9:20
+0:32
20M
20.00 mi14:13:292:56:088:4812:52
9:28
+0:08
21M
21.00 mi14:24:173:06:568:5410:48
10:48
+1:20
35K
21.75 mi14:31:163:13:558:556:59
9:20
-1:28
23M
23.00 mi14:43:053:25:448:5711:49
9:26
+0:06
24M
24.00 mi14:52:383:35:178:589:33
9:33
+0:07
40K
24.85 mi15:00:493:43:288:598:11
9:34
+0:01
25.2M
25.20 mi15:04:173:46:569:003:28
10:03
+0:29
Finish
26.22 mi15:13:333:56:129:019:16
9:06
-0:57

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

8:18 /mi

Average Pace

9:01 /mi

Slowest Pace

10:48 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:14:16

57% of race

Time at Steady Pace

1:27:40

37% of race

Time at Slower Pace

14:16

6% of race

Average Pace: 9:01 /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 mi11:43:0725:468:1825:46
8:18
#16093
10K
6.21 mi12:10:3153:108:3327:24
8:49
#18226
15K
9.32 mi12:37:421:20:218:3727:11
8:45
#18593
20K
12.43 mi13:04:331:47:128:3826:51
8:39
#18356
Half
13.11 mi13:10:181:52:578:375:45
8:26
#18297
25K
15.53 mi13:31:372:14:168:3921:19
8:48
#18228
30K
18.64 mi14:00:372:43:168:4629:00
9:20
#18324
20M
20.00 mi14:13:292:56:088:4812:52
9:28
#18372
21M
21.00 mi14:24:173:06:568:5410:48
10:48
#18558
35K
21.75 mi14:31:163:13:558:556:59
9:20
#18578
23M
23.00 mi14:43:053:25:448:5711:49
9:26
#18549
24M
24.00 mi14:52:383:35:178:589:33
9:33
#18595
40K
24.85 mi15:00:493:43:288:598:11
9:34
#18604
25.2M
25.20 mi15:04:173:46:569:003:28
10:03
#18596
Finish
26.22 mi15:13:333:56:129:019:16
9:06
#18598
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi16093107331073319220(Top 72%)11972(Top 79%)11972(Top 227%)
10K6.21 mi3.10 mi18226-213311552-81911552-81920028(Top 75%)12290(Top 81%)12290(Top 233%)
15K9.32 mi3.11 mi18593-36711697-14511697-14519220(Top 72%)11972(Top 79%)11972(Top 227%)
20K12.43 mi3.11 mi18356+23711611+8611611+8617750(Top 67%)11359(Top 75%)11359(Top 215%)
Half13.11 mi0.68 mi18297+5911586+2511586+2517280(Top 65%)11211(Top 74%)11211(Top 212%)
25K15.53 mi2.42 mi18228+6911541+4511541+4517906(Top 67%)11370(Top 75%)11370(Top 215%)
30K18.64 mi3.11 mi18324-9611547-611547-618760(Top 70%)11675(Top 77%)11675(Top 221%)
20M20.00 mi1.36 mi18372-4811555-811555-818729(Top 70%)11558(Top 76%)11558(Top 219%)
21M21.00 mi1.00 mi18558-18611630-7511630-7520367(Top 77%)12218(Top 81%)12218(Top 231%)
35K21.75 mi0.75 mi18578-2011634-411634-419271(Top 72%)11717(Top 77%)11717(Top 222%)
23M23.00 mi1.25 mi18549+2911605+2911605+2918055(Top 68%)11139(Top 73%)11139(Top 211%)
24M24.00 mi1.00 mi18595-4611613-811613-819376(Top 73%)11701(Top 77%)11701(Top 221%)
40K24.85 mi0.85 mi18604-911602+1111602+1118568(Top 70%)11290(Top 74%)11290(Top 214%)
25.2M25.20 mi0.35 mi18596+811596+611596+617567(Top 66%)10824(Top 71%)10824(Top 205%)
Finish26.22 mi1.02 mi18598-211587+911587+918428(Top 69%)11279(Top 74%)11279(Top 213%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 72%
×21stories
+97ft-345ft

Overall

19220

Males

11972

M18-39

11972

5K→10K

3.1 - 6.2 mi

Top 75%
×5stories
+79ft-138ft

Overall

20028

Males

12290

M18-39

12290

10K→15K

6.2 - 9.3 mi

Top 72%
×3stories
+67ft-78ft

Overall

19220

Males

11972

M18-39

11972

15K→20K

9.3 - 12.4 mi

Top 67%
×5stories
+106ft-86ft

Overall

17750

Males

11359

M18-39

11359

20K→Half

12.4 - 13.1 mi

Top 65%
×2stories
+19ft-37ft

Overall

17280

Males

11211

M18-39

11211

Half→25K

13.1 - 15.5 mi

Top 67%
×4stories
+66ft-88ft

Overall

17906

Males

11370

M18-39

11370

25K→30K

15.5 - 18.6 mi

Top 70%
×9stories
+181ft-148ft

Overall

18760

Males

11675

M18-39

11675

30K→20M

18.6 - 20.0 mi

Top 70%
×5stories
+64ft-50ft

Overall

18729

Males

11558

M18-39

11558

20M→21M

20.0 - 21.0 mi

Top 77%
×8stories
+106ft-24ft

Overall

20367

Males

12218

M18-39

12218

21M→35K

21.0 - 21.8 mi

Top 72%
×7stories
+17ft-86ft

Overall

19271

Males

11717

M18-39

11717

35K→23M

21.8 - 23.0 mi

Top 68%
×5stories
+23ft-63ft

Overall

18055

Males

11139

M18-39

11139

23M→24M

23.0 - 24.0 mi

Top 73%
×6stories
+12ft-82ft

Overall

19376

Males

11701

M18-39

11701

24M→40K

24.0 - 24.9 mi

Top 70%
×1story
+6ft-20ft

Overall

18568

Males

11290

M18-39

11290

40K→25.2M

24.9 - 25.2 mi

Top 66%
×1story
+13ft-16ft

Overall

17567

Males

10824

M18-39

10824

25.2M→Finish

25.2 - 26.2 mi

Top 69%
×2stories
+22ft-21ft

Overall

18428

Males

11279

M18-39

11279

Passing Analysis

Category:
Athletes Passed
1166
Passed By
3671
Net Change
-2505
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#16093
5K → 10K182151-2133#16093#18226
10K → 15K75442-367#18226#18593
15K → 20K29457+237#18593#18356
20K → Half678+59#18356#18297
Half → 25K16091+69#18297#18228
25K → 30K146242-96#18228#18324
30K → 20M80128-48#18324#18372
20M → 21M30216-186#18372#18558
21M → 35K3757-20#18558#18578
35K → 23M9162+29#18578#18549
23M → 24M3783-46#18549#18595
24M → 40K4756-9#18595#18604
40K → 25.2M3224+8#18604#18596
25.2M → Finish5254-2#18596#18598
TOTALS11663671-2505
📊

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