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BOSTON MARATHON 2023

Glen Duvall

Bib: 12018•M

HI

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 38%
Gender (Male)
#0 / 15176
Masters (Masters Men)
#0 / 9891
Top 42%
Division (M50-54)
#0 / 2052
Top 41%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
23:53
Rank: #11324
Start → 5K
23:53 | 7:41/mi
10K· 6.21 mi
47:19
Rank: #11043 (+281)
5K → 10K
23:26 | 7:33/mi
15K· 9.32 mi
1:10:35
Rank: #10688 (+355)
10K → 15K
23:16 | 7:29/mi
20K· 12.43 mi
1:34:18
Rank: #10594 (+94)
15K → 20K
23:43 | 7:38/mi
Half· 13.11 mi
1:39:31
Rank: #10649 (-55)
20K → Half
5:13 | 7:39/mi
25K· 15.53 mi
1:58:09
Rank: #10529 (+120)
Half → 25K
18:38 | 7:41/mi
30K· 18.64 mi
2:23:11
Rank: #10610 (-81)
25K → 30K
25:02 | 8:03/mi
20M
2:34:00
Rank: #10546 (+64)
30K → 20M
10:49 | 7:58/mi
21M
2:42:28
Rank: #10506 (+40)
20M → 21M
8:28 | 8:28/mi
35K· 21.75 mi
2:48:02
Rank: #10395 (+111)
21M → 35K
5:34 | 7:26/mi
23M
2:57:49
Rank: #10256 (+139)
35K → 23M
9:47 | 7:49/mi
24M
3:05:30
Rank: #10165 (+91)
23M → 24M
7:41 | 7:41/mi
40K· 24.85 mi
3:12:09
Rank: #10083 (+82)
24M → 40K
6:39 | 7:47/mi
25.2M
3:15:00
Rank: #10027 (+56)
40K → 25.2M
2:51 | 8:16/mi
Finish· 26.22 mi
3:22:59
Rank: #10047 (-20)
25.2M → Finish
7:59 | 7:50/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:39:31
Pace7:35 /mi
2nd Half
Distance13.11 mi
Time1:43:28
Pace7:54 /mi
📊Positive Split: 4.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:51:3323:537:4123:53
7:41
-
10K
6.21 mi11:14:5947:197:3723:26
7:33
-0:08
15K
9.32 mi11:38:151:10:357:3423:16
7:29
-0:04
20K
12.43 mi12:01:581:34:187:3523:43
7:38
+0:09
Half
13.11 mi12:07:111:39:317:355:13
7:39
+0:01
25K
15.53 mi12:25:491:58:097:3618:38
7:41
+0:02
30K
18.64 mi12:50:512:23:117:4125:02
8:03
+0:22
20M
20.00 mi13:01:402:34:007:4210:49
7:58
-0:05
21M
21.00 mi13:10:082:42:287:448:28
8:28
+0:30
35K
21.75 mi13:15:422:48:027:445:34
7:26
-1:02
23M
23.00 mi13:25:292:57:497:449:47
7:49
+0:23
24M
24.00 mi13:33:103:05:307:447:41
7:41
-0:08
40K
24.85 mi13:39:493:12:097:446:39
7:47
+0:06
25.2M
25.20 mi13:42:403:15:007:442:51
8:16
+0:29
Finish
26.22 mi13:50:393:22:597:457:59
7:50
-0:26

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

7:26 /mi

Average Pace

7:45 /mi

Slowest Pace

8:28 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:11:40

94% of race

Time at Steady Pace

11:19

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:44 /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 mi10:51:3323:537:4123:53
7:41
#11324
10K
6.21 mi11:14:5947:197:3723:26
7:33
#11043
15K
9.32 mi11:38:151:10:357:3423:16
7:29
#10688
20K
12.43 mi12:01:581:34:187:3523:43
7:38
#10594
Half
13.11 mi12:07:111:39:317:355:13
7:39
#10649
25K
15.53 mi12:25:491:58:097:3618:38
7:41
#10529
30K
18.64 mi12:50:512:23:117:4125:02
8:03
#10610
20M
20.00 mi13:01:402:34:007:4210:49
7:58
#10546
21M
21.00 mi13:10:082:42:287:448:28
8:28
#10506
35K
21.75 mi13:15:422:48:027:445:34
7:26
#10395
23M
23.00 mi13:25:292:57:497:449:47
7:49
#10256
24M
24.00 mi13:33:103:05:307:447:41
7:41
#10165
40K
24.85 mi13:39:493:12:097:446:39
7:47
#10083
25.2M
25.20 mi13:42:403:15:007:442:51
8:16
#10027
Finish
26.22 mi13:50:393:22:597:457:59
7:50
#10047
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
5K3.11 mi3.11 mi113248807880710078(Top 38%)8187(Top 54%)8187(Top 399%)
10K6.21 mi3.10 mi11043+2818680+1278680+12710807(Top 41%)8585(Top 57%)8585(Top 418%)
15K9.32 mi3.11 mi10688+3558509+1718509+17110078(Top 38%)8187(Top 54%)8187(Top 399%)
20K12.43 mi3.11 mi10594+948457+528457+5210340(Top 39%)8257(Top 54%)8257(Top 402%)
Half13.11 mi0.68 mi10649-558481-248481-2411333(Top 43%)8766(Top 58%)8766(Top 427%)
25K15.53 mi2.42 mi10529+1208406+758406+7510177(Top 38%)8085(Top 53%)8085(Top 394%)
30K18.64 mi3.11 mi10610-818384+228384+2211344(Top 43%)8515(Top 56%)8515(Top 415%)
20M20.00 mi1.36 mi10546+648335+498335+499950(Top 37%)7732(Top 51%)7732(Top 377%)
21M21.00 mi1.00 mi10506+408283+528283+5210256(Top 39%)7734(Top 51%)7734(Top 377%)
35K21.75 mi0.75 mi10395+1118216+678216+678091(Top 30%)6562(Top 43%)6562(Top 320%)
23M23.00 mi1.25 mi10256+1398118+988118+988508(Top 32%)6709(Top 44%)6709(Top 327%)
24M24.00 mi1.00 mi10165+918045+738045+738961(Top 34%)6875(Top 45%)6875(Top 335%)
40K24.85 mi0.85 mi10083+827972+737972+738519(Top 32%)6571(Top 43%)6571(Top 320%)
25.2M25.20 mi0.35 mi10027+567926+467926+468069(Top 30%)6229(Top 41%)6229(Top 304%)
Finish26.22 mi1.02 mi10047-207916+107916+1010913(Top 41%)7750(Top 51%)7750(Top 378%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 38%
×21stories
+97ft-345ft

Overall

10078

Males

8187

M50-54

8187

5K→10K

3.1 - 6.2 mi

Top 41%
×5stories
+79ft-138ft

Overall

10807

Males

8585

M50-54

8585

10K→15K

6.2 - 9.3 mi

Top 38%
×3stories
+67ft-78ft

Overall

10078

Males

8187

M50-54

8187

15K→20K

9.3 - 12.4 mi

Top 39%
×5stories
+106ft-86ft

Overall

10340

Males

8257

M50-54

8257

20K→Half

12.4 - 13.1 mi

Top 43%
×2stories
+19ft-37ft

Overall

11333

Males

8766

M50-54

8766

Half→25K

13.1 - 15.5 mi

Top 38%
×4stories
+66ft-88ft

Overall

10177

Males

8085

M50-54

8085

25K→30K

15.5 - 18.6 mi

Top 43%
×9stories
+181ft-148ft

Overall

11344

Males

8515

M50-54

8515

30K→20M

18.6 - 20.0 mi

Top 37%
×5stories
+64ft-50ft

Overall

9950

Males

7732

M50-54

7732

20M→21M

20.0 - 21.0 mi

Top 39%
×8stories
+106ft-24ft

Overall

10256

Males

7734

M50-54

7734

21M→35K

21.0 - 21.8 mi

Top 30%
×7stories
+17ft-86ft

Overall

8091

Males

6562

M50-54

6562

35K→23M

21.8 - 23.0 mi

Top 32%
×5stories
+23ft-63ft

Overall

8508

Males

6709

M50-54

6709

23M→24M

23.0 - 24.0 mi

Top 34%
×6stories
+12ft-82ft

Overall

8961

Males

6875

M50-54

6875

24M→40K

24.0 - 24.9 mi

Top 32%
×1story
+6ft-20ft

Overall

8519

Males

6571

M50-54

6571

40K→25.2M

24.9 - 25.2 mi

Top 30%
×1story
+13ft-16ft

Overall

8069

Males

6229

M50-54

6229

25.2M→Finish

25.2 - 26.2 mi

Top 41%
×2stories
+22ft-21ft

Overall

10913

Males

7750

M50-54

7750

Passing Analysis

Category:
Athletes Passed
2253*
Passed By
976
Net Change
+1277
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#11324
5K → 10K463182+281#11324#11043
10K → 15K40550+355#11043#10688
15K → 20K204110+94#10688#10594
20K → Half1570-55#10594#10649
Half → 25K17959+120#10649#10529
25K → 30K149230-81#10529#10610
30K → 20M112*48+64#10610#10546
20M → 21M10161+40#10546#10506
21M → 35K1165+111#10506#10395
35K → 23M15819+139#10395#10256
23M → 24M11625+91#10256#10165
24M → 40K10220+82#10165#10083
40K → 25.2M66*10+56#10083#10027
25.2M → Finish6787-20#10027#10047
TOTALS2253*976+1277

* Includes athletes who did not complete a segment (DNF/DNQ).

📊

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