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BOSTON MARATHON 2023

Gary Krenz

Bib: 12245•M

WI

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 34%
Gender (Male)
#0 / 15176
Top 48%
Masters (Masters Men)
#0 / 9891
Top 37%
Division (M65-69)
#0 / 549
Top 3%
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
7:52/mi
24:25
↑ 97↓ 3451.5%
10K· 6.21 mi
7:32/mi
47:48
↑ 79↓ 1380.4%
15K· 9.32 mi
7:25/mi
1:10:51
↑ 67↓ 78
20K· 12.43 mi
7:26/mi
1:33:57
↑ 106↓ 860.1%
Half· 13.11 mi
7:23/mi
1:38:59
↑ 19↓ 370.5%
25K· 15.53 mi
7:29/mi
1:57:07
↑ 66↓ 880.2%
30K· 18.64 mi
7:35/mi
2:20:40
↑ 181↓ 1480.2%
20M
8:13/mi
2:31:50
↑ 64↓ 500.2%
21M
8:03/mi
2:39:53
↑ 106↓ 241.6%
35K· 21.75 mi
7:25/mi
2:45:26
↑ 17↓ 861.7%
23M
7:39/mi
2:55:01
↑ 23↓ 630.6%
24M
7:22/mi
3:02:23
↓ 821.3%
40K· 24.85 mi
7:34/mi
3:08:51
↓ 200.3%
25.2M
8:07/mi
3:11:39
↑ 13↓ 160.2%
Finish· 26.22 mi
7:33/mi
3:19:21
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:38:59
Pace7:33 /mi
2nd Half
Distance13.11 mi
Time1:40:22
Pace7:39 /mi
📊Positive Split: 1.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:52:1224:257:5224:25
7:52
-
10K
6.21 mi11:15:3547:487:4223:23
7:32
-0:20
15K
9.32 mi11:38:381:10:517:3623:03
7:25
-0:07
20K
12.43 mi12:01:441:33:577:3423:06
7:26
+0:01
Half
13.11 mi12:06:461:38:597:335:02
7:23
-0:03
25K
15.53 mi12:24:541:57:077:3218:08
7:29
+0:06
30K
18.64 mi12:48:272:20:407:3323:33
7:35
+0:06
20M
20.00 mi12:59:372:31:507:3511:10
8:13
+0:38
21M
21.00 mi13:07:402:39:537:378:03
8:03
-0:10
35K
21.75 mi13:13:132:45:267:365:33
7:25
-0:38
23M
23.00 mi13:22:482:55:017:379:35
7:39
+0:14
24M
24.00 mi13:30:103:02:237:367:22
7:22
-0:17
40K
24.85 mi13:36:383:08:517:366:28
7:34
+0:12
25.2M
25.20 mi13:39:263:11:397:362:48
8:07
+0:33
Finish
26.22 mi13:47:083:19:217:377:42
7:33
-0:34

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

7:22 /mi

Average Pace

7:37 /mi

Slowest Pace

8:13 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:05:23

93% of race

Time at Steady Pace

13:58

7% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:36 /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 mi10:52:1224:257:5224:25
7:52
#12899
10K
6.21 mi11:15:3547:487:4223:23
7:32
#11716
15K
9.32 mi11:38:381:10:517:3623:03
7:25
#10935
20K
12.43 mi12:01:441:33:577:3423:06
7:26
#10345
Half
13.11 mi12:06:461:38:597:335:02
7:23
#10291
25K
15.53 mi12:24:541:57:077:3218:08
7:29
#9965
30K
18.64 mi12:48:272:20:407:3323:33
7:35
#9547
20M
20.00 mi12:59:372:31:507:3511:10
8:13
#9675
21M
21.00 mi13:07:402:39:537:378:03
8:03
#9536
35K
21.75 mi13:13:132:45:267:365:33
7:25
#9464
23M
23.00 mi13:22:482:55:017:379:35
7:39
#9281
24M
24.00 mi13:30:103:02:237:367:22
7:22
#9153
40K
24.85 mi13:36:383:08:517:366:28
7:34
#9056
25.2M
25.20 mi13:39:263:11:397:362:48
8:07
#9019
Finish
26.22 mi13:47:083:19:217:377:42
7:33
#8991
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM65-69Seg. OverallSeg. MalesSeg. M65-69
5K3.11 mi3.11 mi12899949294929495(Top 36%)7864(Top 52%)7864(Top 1432%)
10K6.21 mi3.10 mi11716+11838983+5098983+50910652(Top 40%)8506(Top 56%)8506(Top 1549%)
15K9.32 mi3.11 mi10935+7818620+3638620+3639495(Top 36%)7864(Top 52%)7864(Top 1432%)
20K12.43 mi3.11 mi10345+5908336+2848336+2848790(Top 33%)7372(Top 49%)7372(Top 1343%)
Half13.11 mi0.68 mi10291+548307+298307+299187(Top 35%)7622(Top 50%)7622(Top 1388%)
25K15.53 mi2.42 mi9965+3268115+1928115+1928618(Top 32%)7221(Top 48%)7221(Top 1315%)
30K18.64 mi3.11 mi9547+4187834+2817834+2817801(Top 29%)6575(Top 43%)6575(Top 1198%)
20M20.00 mi1.36 mi9675-1287881-477881-4711779(Top 44%)8606(Top 57%)8606(Top 1568%)
21M21.00 mi1.00 mi9536+1397778+1037778+1037667(Top 29%)6293(Top 41%)6293(Top 1146%)
35K21.75 mi0.75 mi9464+727717+617717+617928(Top 30%)6463(Top 43%)6463(Top 1177%)
23M23.00 mi1.25 mi9281+1837578+1397578+1397453(Top 28%)6094(Top 40%)6094(Top 1110%)
24M24.00 mi1.00 mi9153+1287486+927486+926835(Top 26%)5624(Top 37%)5624(Top 1024%)
40K24.85 mi0.85 mi9056+977413+737413+737104(Top 27%)5697(Top 38%)5697(Top 1038%)
25.2M25.20 mi0.35 mi9019+377383+307383+307201(Top 27%)5715(Top 38%)5715(Top 1041%)
Finish26.22 mi1.02 mi8991+287338+457338+458939(Top 34%)6717(Top 44%)6717(Top 1223%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 36%
×21story building
+97ft-345ft

Overall

9495

Males

7864

M65-69

7864

5K→10K

3.1 - 6.2 mi

Top 40%
×5story building
+79ft-138ft

Overall

10652

Males

8506

M65-69

8506

10K→15K

6.2 - 9.3 mi

Top 36%
×3story building
+67ft-78ft

Overall

9495

Males

7864

M65-69

7864

15K→20K

9.3 - 12.4 mi

Top 33%
×5story building
+106ft-86ft

Overall

8790

Males

7372

M65-69

7372

20K→Half

12.4 - 13.1 mi

Top 35%
×2story building
+19ft-37ft

Overall

9187

Males

7622

M65-69

7622

Half→25K

13.1 - 15.5 mi

Top 32%
×4story building
+66ft-88ft

Overall

8618

Males

7221

M65-69

7221

25K→30K

15.5 - 18.6 mi

Top 29%
×9story building
+181ft-148ft

Overall

7801

Males

6575

M65-69

6575

30K→20M

18.6 - 20.0 mi

Top 44%
×5story building
+64ft-50ft

Overall

11779

Males

8606

M65-69

8606

20M→21M

20.0 - 21.0 mi

Top 29%
×8story building
+106ft-24ft

Overall

7667

Males

6293

M65-69

6293

21M→35K

21.0 - 21.8 mi

Top 30%
×7story building
+17ft-86ft

Overall

7928

Males

6463

M65-69

6463

35K→23M

21.8 - 23.0 mi

Top 28%
×5story building
+23ft-63ft

Overall

7453

Males

6094

M65-69

6094

23M→24M

23.0 - 24.0 mi

Top 26%
×6story building
+12ft-82ft

Overall

6835

Males

5624

M65-69

5624

24M→40K

24.0 - 24.9 mi

Top 27%
×1story
+6ft-20ft

Overall

7104

Males

5697

M65-69

5697

40K→25.2M

24.9 - 25.2 mi

Top 27%
×1story
+13ft-16ft

Overall

7201

Males

5715

M65-69

5715

25.2M→Finish

25.2 - 26.2 mi

Top 34%
×2story building
+22ft-21ft

Overall

8939

Males

6717

M65-69

6717

Passing Analysis

Category:
Athletes Passed
4303*
Passed By
395
Net Change
+3908
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#12899
5K → 10K123047+1183#12899#11716
10K → 15K79312+781#11716#10935
15K → 20K595*5+590#10935#10345
20K → Half628+54#10345#10291
Half → 25K342*16+326#10291#9965
25K → 30K432*14+418#9965#9547
30K → 20M50178-128#9547#9675
20M → 21M15112+139#9675#9536
21M → 35K9119+72#9536#9464
35K → 23M19512+183#9464#9281
23M → 24M1368+128#9281#9153
24M → 40K1058+97#9153#9056
40K → 25.2M425+37#9056#9019
25.2M → Finish7951+28#9019#8991
TOTALS4303*395+3908

* 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