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BOSTON MARATHON 2023

Don Gubler

Bib: 10701•M

NV

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 42%
Gender (Male)
#0 / 15176
Masters (Masters Men)
#0 / 9891
Top 46%
Division (M45-49)
#0 / 2252
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent
Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
5K· 3.11 mi
7:21/mi
22:49
↑ 97↓ 3451.5%
10K· 6.21 mi
7:18/mi
45:29
↑ 79↓ 1380.4%
15K· 9.32 mi
7:22/mi
1:08:23
↑ 67↓ 78
20K· 12.43 mi
7:57/mi
1:33:05
↑ 106↓ 860.1%
Half· 13.11 mi
7:29/mi
1:38:11
↑ 19↓ 370.5%
25K· 15.53 mi
7:43/mi
1:56:54
↑ 66↓ 880.2%
30K· 18.64 mi
8:07/mi
2:22:07
↑ 181↓ 1480.2%
20M
8:07/mi
2:33:09
↑ 64↓ 500.2%
21M
9:28/mi
2:42:37
↑ 106↓ 241.6%
35K· 21.75 mi
7:53/mi
2:48:31
↑ 17↓ 861.7%
23M
8:11/mi
2:58:46
↑ 23↓ 630.6%
24M
8:43/mi
3:07:29
↓ 821.3%
40K· 24.85 mi
8:25/mi
3:14:41
↓ 200.3%
25.2M
10:44/mi
3:18:23
↑ 13↓ 160.2%
Finish· 26.22 mi
7:56/mi
3:26:28
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:38:11
Pace7:29 /mi
2nd Half
Distance13.11 mi
Time1:48:17
Pace8:16 /mi
📊Positive Split: 10.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:49:1322:497:2122:49
7:21
-
10K
6.21 mi11:11:5345:297:1922:40
7:18
-0:03
15K
9.32 mi11:34:471:08:237:2022:54
7:22
+0:04
20K
12.43 mi11:59:291:33:057:2924:42
7:57
+0:35
Half
13.11 mi12:04:351:38:117:295:06
7:29
-0:28
25K
15.53 mi12:23:181:56:547:3218:43
7:43
+0:14
30K
18.64 mi12:48:312:22:077:3725:13
8:07
+0:24
20M
20.00 mi12:59:332:33:097:3911:02
8:07
0:00
21M
21.00 mi13:09:012:42:377:459:28
9:28
+1:21
35K
21.75 mi13:14:552:48:317:455:54
7:53
-1:35
23M
23.00 mi13:25:102:58:467:4610:15
8:11
+0:18
24M
24.00 mi13:33:533:07:297:498:43
8:43
+0:32
40K
24.85 mi13:41:053:14:417:507:12
8:25
-0:18
25.2M
25.20 mi13:44:473:18:237:523:42
10:44
+2:19
Finish
26.22 mi13:52:523:26:287:538:05
7:56
-2:48

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

7:18 /mi

Average Pace

7:53 /mi

Slowest Pace

10:44 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:13:29

36% of race

Time at Steady Pace

1:43:54

50% of race

Time at Slower Pace

29:05

14% of race

Average Pace: 7:52 /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 mi10:49:1322:497:2122:49
7:21
#8410
10K
6.21 mi11:11:5345:297:1922:40
7:18
#8581
15K
9.32 mi11:34:471:08:237:2022:54
7:22
#8743
20K
12.43 mi11:59:291:33:057:2924:42
7:57
#9737
Half
13.11 mi12:04:351:38:117:295:06
7:29
#9761
25K
15.53 mi12:23:181:56:547:3218:43
7:43
#9856
30K
18.64 mi12:48:312:22:077:3725:13
8:07
#10161
20M
20.00 mi12:59:332:33:097:3911:02
8:07
#10219
21M
21.00 mi13:09:012:42:377:459:28
9:28
#10569
35K
21.75 mi13:14:552:48:317:455:54
7:53
#10560
23M
23.00 mi13:25:102:58:467:4610:15
8:11
#10582
24M
24.00 mi13:33:533:07:297:498:43
8:43
#10832
40K
24.85 mi13:41:053:14:417:507:12
8:25
#10899
25.2M
25.20 mi13:44:473:18:237:523:42
10:44
#11110
Finish
26.22 mi13:52:523:26:287:538:05
7:56
#11120
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM45-49Seg. OverallSeg. MalesSeg. M45-49
5K3.11 mi3.11 mi8410724672469104(Top 34%)7607(Top 50%)7607(Top 338%)
10K6.21 mi3.10 mi8581-1717320-747320-748837(Top 33%)7483(Top 49%)7483(Top 332%)
15K9.32 mi3.11 mi8743-1627408-887408-889104(Top 34%)7607(Top 50%)7607(Top 338%)
20K12.43 mi3.11 mi9737-9948004-5968004-59613012(Top 49%)9435(Top 62%)9435(Top 419%)
Half13.11 mi0.68 mi9761-248015-118015-1110015(Top 38%)8125(Top 54%)8125(Top 361%)
25K15.53 mi2.42 mi9856-958055-408055-4010445(Top 39%)8229(Top 54%)8229(Top 365%)
30K18.64 mi3.11 mi10161-3058175-1208175-12011752(Top 44%)8693(Top 57%)8693(Top 386%)
20M20.00 mi1.36 mi10219-588174+18174+111135(Top 42%)8319(Top 55%)8319(Top 369%)
21M21.00 mi1.00 mi10569-3508319-1458319-14515775(Top 59%)10249(Top 68%)10249(Top 455%)
35K21.75 mi0.75 mi10560+98291+288291+2811263(Top 42%)8245(Top 54%)8245(Top 366%)
23M23.00 mi1.25 mi10582-228271+208271+2011084(Top 42%)8015(Top 53%)8015(Top 356%)
24M24.00 mi1.00 mi10832-2508374-1038374-10315716(Top 59%)10039(Top 66%)10039(Top 446%)
40K24.85 mi0.85 mi10899-678380-68380-612804(Top 48%)8679(Top 57%)8679(Top 385%)
25.2M25.20 mi0.35 mi11110-2118476-968476-9619724(Top 74%)11776(Top 78%)11776(Top 523%)
Finish26.22 mi1.02 mi11120-108453+238453+2311600(Top 44%)8093(Top 53%)8093(Top 359%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 34%
×21story building
+97ft-345ft

Overall

9104

Males

7607

M45-49

7607

5K→10K

3.1 - 6.2 mi

Top 33%
×5story building
+79ft-138ft

Overall

8837

Males

7483

M45-49

7483

10K→15K

6.2 - 9.3 mi

Top 34%
×3story building
+67ft-78ft

Overall

9104

Males

7607

M45-49

7607

15K→20K

9.3 - 12.4 mi

Top 49%
×5story building
+106ft-86ft

Overall

13012

Males

9435

M45-49

9435

20K→Half

12.4 - 13.1 mi

Top 38%
×2story building
+19ft-37ft

Overall

10015

Males

8125

M45-49

8125

Half→25K

13.1 - 15.5 mi

Top 39%
×4story building
+66ft-88ft

Overall

10445

Males

8229

M45-49

8229

25K→30K

15.5 - 18.6 mi

Top 44%
×9story building
+181ft-148ft

Overall

11752

Males

8693

M45-49

8693

30K→20M

18.6 - 20.0 mi

Top 42%
×5story building
+64ft-50ft

Overall

11135

Males

8319

M45-49

8319

20M→21M

20.0 - 21.0 mi

Top 59%
×8story building
+106ft-24ft

Overall

15775

Males

10249

M45-49

10249

21M→35K

21.0 - 21.8 mi

Top 42%
×7story building
+17ft-86ft

Overall

11263

Males

8245

M45-49

8245

35K→23M

21.8 - 23.0 mi

Top 42%
×5story building
+23ft-63ft

Overall

11084

Males

8015

M45-49

8015

23M→24M

23.0 - 24.0 mi

Top 59%
×6story building
+12ft-82ft

Overall

15716

Males

10039

M45-49

10039

24M→40K

24.0 - 24.9 mi

Top 48%
×1story
+6ft-20ft

Overall

12804

Males

8679

M45-49

8679

40K→25.2M

24.9 - 25.2 mi

Top 74%
×1story
+13ft-16ft

Overall

19724

Males

11776

M45-49

11776

25.2M→Finish

25.2 - 26.2 mi

Top 44%
×2story building
+22ft-21ft

Overall

11600

Males

8093

M45-49

8093

Passing Analysis

Category:
Athletes Passed
827*
Passed By
3536
Net Change
-2710
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#8410
5K → 10K173344-171#8410#8581
10K → 15K92254-162#8581#8743
15K → 20K151009-994#8743#9737
20K → Half2448-24#9737#9761
Half → 25K88182-95#9761#9856
25K → 30K79384-305#9856#10161
30K → 20M63*121-58#10161#10219
20M → 21M23373-350#10219#10569
21M → 35K5344+9#10569#10560
35K → 23M7496-22#10560#10582
23M → 24M25275-250#10582#10832
24M → 40K44111-67#10832#10899
40K → 25.2M5216-211#10899#11110
25.2M → Finish6979-10#11110#11120
TOTALS827*3536-2710

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

📊

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