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BOSTON MARATHON 2023

Dan Zegzula

Bib: 15320•M

OR

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Male)
#0 / 15176
Masters (Masters Men)
#0 / 9891
Division (M55-59)
#0 / 1422
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
25:22
Rank: #15182
Start → 5K
8:10/mi
25:22 split
10K· 6.21 mi
51:36
Rank: #16529 (-1347)
5K → 10K
8:27/mi
26:14 split
15K· 9.32 mi
1:19:38
Rank: #18128 (-1599)
10K → 15K
9:01/mi
28:02 split
20K· 12.43 mi
1:47:06
Rank: #18311 (-183)
15K → 20K
8:50/mi
27:28 split
Half· 13.11 mi
1:53:20
Rank: #18478 (-167)
20K → Half
9:08/mi
6:14 split
25K· 15.53 mi
2:14:28
Rank: #18307 (+171)
Half → 25K
8:43/mi
21:08 split
30K· 18.64 mi
2:44:08
Rank: #18610 (-303)
25K → 30K
9:33/mi
29:40 split
20M
2:55:49
Rank: #18286 (+324)
30K → 20M
8:36/mi
11:41 split
21M
3:05:25
Rank: #18143 (+143)
20M → 21M
9:36/mi
9:36 split
35K· 21.75 mi
3:11:42
Rank: #18022 (+121)
21M → 35K
8:24/mi
6:17 split
23M
3:22:53
Rank: #17893 (+129)
35K → 23M
8:56/mi
11:11 split
24M
3:31:16
Rank: #17722 (+171)
23M → 24M
8:23/mi
8:23 split
40K· 24.85 mi
3:38:44
Rank: #17618 (+104)
24M → 40K
8:44/mi
7:28 split
25.2M
3:41:57
Rank: #17559 (+59)
40K → 25.2M
9:20/mi
3:13 split
Finish· 26.22 mi
3:50:40
Rank: #17487 (+72)
25.2M → Finish
8:33/mi
8:43 split

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:53:20
Pace8:39 /mi
2nd Half
Distance13.11 mi
Time1:57:20
Pace8:57 /mi
📊Positive Split: 3.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:53:3325:228:1025:22
8:10
-
10K
6.21 mi11:19:4751:368:1826:14
8:27
+0:17
15K
9.32 mi11:47:491:19:388:3328:02
9:01
+0:34
20K
12.43 mi12:15:171:47:068:3727:28
8:50
-0:11
Half
13.11 mi12:21:311:53:208:396:14
9:08
+0:18
25K
15.53 mi12:42:392:14:288:3921:08
8:43
-0:25
30K
18.64 mi13:12:192:44:088:4829:40
9:33
+0:50
20M
20.00 mi13:24:002:55:498:4711:41
8:36
-0:57
21M
21.00 mi13:33:363:05:258:509:36
9:36
+1:00
35K
21.75 mi13:39:533:11:428:496:17
8:24
-1:12
23M
23.00 mi13:51:043:22:538:4911:11
8:56
+0:32
24M
24.00 mi13:59:273:31:168:488:23
8:23
-0:33
40K
24.85 mi14:06:553:38:448:487:28
8:44
+0:21
25.2M
25.20 mi14:10:083:41:578:483:13
9:20
+0:36
Finish
26.22 mi14:18:513:50:408:488:43
8:33
-0:47

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

8:10 /mi

Average Pace

8:48 /mi

Slowest Pace

9:36 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:33:55

67% of race

Time at Steady Pace

1:16:45

33% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:48 /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 mi10:53:3325:228:1025:22
8:10
#15182
10K
6.21 mi11:19:4751:368:1826:14
8:27
#16529
15K
9.32 mi11:47:491:19:388:3328:02
9:01
#18128
20K
12.43 mi12:15:171:47:068:3727:28
8:50
#18311
Half
13.11 mi12:21:311:53:208:396:14
9:08
#18478
25K
15.53 mi12:42:392:14:288:3921:08
8:43
#18307
30K
18.64 mi13:12:192:44:088:4829:40
9:33
#18610
20M
20.00 mi13:24:002:55:498:4711:41
8:36
#18286
21M
21.00 mi13:33:363:05:258:509:36
9:36
#18143
35K
21.75 mi13:39:533:11:428:496:17
8:24
#18022
23M
23.00 mi13:51:043:22:538:4911:11
8:56
#17893
24M
24.00 mi13:59:273:31:168:488:23
8:23
#17722
40K
24.85 mi14:06:553:38:448:487:28
8:44
#17618
25.2M
25.20 mi14:10:083:41:578:483:13
9:20
#17559
Finish
26.22 mi14:18:513:50:408:488:43
8:33
#17487
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM55-59Seg. OverallSeg. MalesSeg. M55-59
5K3.11 mi3.11 mi15182104071040720594(Top 77%)12561(Top 83%)12561(Top 883%)
10K6.21 mi3.10 mi16529-134710915-50810915-50817883(Top 67%)11449(Top 75%)11449(Top 805%)
15K9.32 mi3.11 mi18128-159911506-59111506-59120594(Top 77%)12561(Top 83%)12561(Top 883%)
20K12.43 mi3.11 mi18311-18311592-8611592-8618875(Top 71%)11838(Top 78%)11838(Top 832%)
Half13.11 mi0.68 mi18478-16711664-7211664-7220919(Top 79%)12687(Top 84%)12687(Top 892%)
25K15.53 mi2.42 mi18307+17111575+8911575+8917456(Top 66%)11177(Top 74%)11177(Top 786%)
30K18.64 mi3.11 mi18610-30311663-8811663-8819600(Top 74%)12043(Top 79%)12043(Top 847%)
20M20.00 mi1.36 mi18286+32411510+15311510+15314239(Top 53%)9669(Top 64%)9669(Top 680%)
21M21.00 mi1.00 mi18143+14311436+7411436+7416407(Top 62%)10532(Top 69%)10532(Top 741%)
35K21.75 mi0.75 mi18022+12111390+4611390+4614706(Top 55%)9757(Top 64%)9757(Top 686%)
23M23.00 mi1.25 mi17893+12911320+7011320+7015685(Top 59%)10102(Top 67%)10102(Top 710%)
24M24.00 mi1.00 mi17722+17111237+8311237+8313761(Top 52%)9220(Top 61%)9220(Top 648%)
40K24.85 mi0.85 mi17618+10411182+5511182+5514711(Top 55%)9561(Top 63%)9561(Top 672%)
25.2M25.20 mi0.35 mi17559+5911153+2911153+2914300(Top 54%)9393(Top 62%)9393(Top 661%)
Finish26.22 mi1.02 mi17487+7211109+4411109+4415721(Top 59%)10050(Top 66%)10050(Top 707%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 77%
×21story building
+97ft-345ft

Overall

20594

Males

12561

M55-59

12561

5K→10K

3.1 - 6.2 mi

Top 67%
×5story building
+79ft-138ft

Overall

17883

Males

11449

M55-59

11449

10K→15K

6.2 - 9.3 mi

Top 77%
×3story building
+67ft-78ft

Overall

20594

Males

12561

M55-59

12561

15K→20K

9.3 - 12.4 mi

Top 71%
×5story building
+106ft-86ft

Overall

18875

Males

11838

M55-59

11838

20K→Half

12.4 - 13.1 mi

Top 79%
×2story building
+19ft-37ft

Overall

20919

Males

12687

M55-59

12687

Half→25K

13.1 - 15.5 mi

Top 66%
×4story building
+66ft-88ft

Overall

17456

Males

11177

M55-59

11177

25K→30K

15.5 - 18.6 mi

Top 74%
×9story building
+181ft-148ft

Overall

19600

Males

12043

M55-59

12043

30K→20M

18.6 - 20.0 mi

Top 53%
×5story building
+64ft-50ft

Overall

14239

Males

9669

M55-59

9669

20M→21M

20.0 - 21.0 mi

Top 62%
×8story building
+106ft-24ft

Overall

16407

Males

10532

M55-59

10532

21M→35K

21.0 - 21.8 mi

Top 55%
×7story building
+17ft-86ft

Overall

14706

Males

9757

M55-59

9757

35K→23M

21.8 - 23.0 mi

Top 59%
×5story building
+23ft-63ft

Overall

15685

Males

10102

M55-59

10102

23M→24M

23.0 - 24.0 mi

Top 52%
×6story building
+12ft-82ft

Overall

13761

Males

9220

M55-59

9220

24M→40K

24.0 - 24.9 mi

Top 55%
×1story
+6ft-20ft

Overall

14711

Males

9561

M55-59

9561

40K→25.2M

24.9 - 25.2 mi

Top 54%
×1story
+13ft-16ft

Overall

14300

Males

9393

M55-59

9393

25.2M→Finish

25.2 - 26.2 mi

Top 59%
×2story building
+22ft-21ft

Overall

15721

Males

10050

M55-59

10050

Passing Analysis

Category:
Athletes Passed
1702
Passed By
4007
Net Change
-2305
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#15182
5K → 10K261373-1347#15182#16529
10K → 15K131612-1599#16529#18128
15K → 20K112295-183#18128#18311
20K → Half6173-167#18311#18478
Half → 25K21948+171#18478#18307
25K → 30K96399-303#18307#18610
30K → 20M3273+324#18610#18286
20M → 21M17835+143#18286#18143
21M → 35K1254+121#18143#18022
35K → 23M15021+129#18022#17893
23M → 24M1765+171#17893#17722
24M → 40K11612+104#17722#17618
40K → 25.2M645+59#17618#17559
25.2M → Finish9422+72#17559#17487
TOTALS17024007-2305
📊

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