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BOSTON MARATHON 2023

Alexander Romantz

Bib: 31930•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
28:50
Rank: #21467
Start → 5K
9:17/mi
28:50 split
10K· 6.21 mi
56:13
Rank: #20838 (+629)
5K → 10K
8:49/mi
27:23 split
15K· 9.32 mi
1:24:58
Rank: #21101 (-263)
10K → 15K
9:15/mi
28:45 split
20K· 12.43 mi
1:55:03
Rank: #21375 (-274)
15K → 20K
9:41/mi
30:05 split
Half· 13.11 mi
2:01:42
Rank: #21445 (-70)
20K → Half
9:45/mi
6:39 split
25K· 15.53 mi
2:27:02
Rank: #21782 (-337)
Half → 25K
10:27/mi
25:20 split
30K· 18.64 mi
3:00:08
Rank: #21957 (-175)
25K → 30K
10:39/mi
33:06 split
20M
3:14:53
Rank: #22005 (-48)
30K → 20M
10:51/mi
14:45 split
21M
3:25:37
Rank: #21906 (+99)
20M → 21M
10:44/mi
10:44 split
35K· 21.75 mi
3:35:44
Rank: #22169 (-263)
21M → 35K
13:31/mi
10:07 split
23M
3:49:49
Rank: #22227 (-58)
35K → 23M
11:15/mi
14:05 split
24M
4:00:13
Rank: #22203 (+24)
23M → 24M
10:24/mi
10:24 split
40K· 24.85 mi
4:08:55
Rank: #22142 (+61)
24M → 40K
10:11/mi
8:42 split
25.2M
4:12:36
Rank: #22103 (+39)
40K → 25.2M
10:41/mi
3:41 split
Finish· 26.22 mi
4:22:12
Rank: #22034 (+69)
25.2M → Finish
9:25/mi
9:36 split

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:01:42
Pace9:17 /mi
2nd Half
Distance13.11 mi
Time2:20:30
Pace10:43 /mi
📊Positive Split: 15.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:49:1928:509:1728:50
9:17
-
10K
6.21 mi12:16:4256:139:0327:23
8:49
-0:28
15K
9.32 mi12:45:271:24:589:0728:45
9:15
+0:26
20K
12.43 mi13:15:321:55:039:1530:05
9:41
+0:26
Half
13.11 mi13:22:112:01:429:176:39
9:45
+0:04
25K
15.53 mi13:47:312:27:029:2825:20
10:27
+0:42
30K
18.64 mi14:20:373:00:089:4033:06
10:39
+0:12
20M
20.00 mi14:35:223:14:539:4514:45
10:51
+0:12
21M
21.00 mi14:46:063:25:379:4710:44
10:44
-0:07
35K
21.75 mi14:56:133:35:449:5510:07
13:31
+2:47
23M
23.00 mi15:10:183:49:4910:0014:05
11:15
-2:16
24M
24.00 mi15:20:424:00:1310:0110:24
10:24
-0:51
40K
24.85 mi15:29:244:08:5510:018:42
10:11
-0:13
25.2M
25.20 mi15:33:054:12:3610:013:41
10:41
+0:30
Finish
26.22 mi15:42:414:22:1210:009:36
9:25
-1:16

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

8:49 /mi

Average Pace

10:00 /mi

Slowest Pace

13:31 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:11:18

50% of race

Time at Steady Pace

1:46:42

41% of race

Time at Slower Pace

24:12

9% of race

Average Pace: 10:00 /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 mi11:49:1928:509:1728:50
9:17
#21467
10K
6.21 mi12:16:4256:139:0327:23
8:49
#20838
15K
9.32 mi12:45:271:24:589:0728:45
9:15
#21101
20K
12.43 mi13:15:321:55:039:1530:05
9:41
#21375
Half
13.11 mi13:22:112:01:429:176:39
9:45
#21445
25K
15.53 mi13:47:312:27:029:2825:20
10:27
#21782
30K
18.64 mi14:20:373:00:089:4033:06
10:39
#21957
20M
20.00 mi14:35:223:14:539:4514:45
10:51
#22005
21M
21.00 mi14:46:063:25:379:4710:44
10:44
#21906
35K
21.75 mi14:56:133:35:449:5510:07
13:31
#22169
23M
23.00 mi15:10:183:49:4910:0014:05
11:15
#22227
24M
24.00 mi15:20:424:00:1310:0110:24
10:24
#22203
40K
24.85 mi15:29:244:08:5510:018:42
10:11
#22142
25.2M
25.20 mi15:33:054:12:3610:013:41
10:41
#22103
Finish
26.22 mi15:42:414:22:1210:009:36
9:25
#22034
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi21467128271282721487(Top 81%)12976(Top 86%)12976(Top 246%)
10K6.21 mi3.10 mi20838+62912593+23412593+23420003(Top 75%)12285(Top 81%)12285(Top 232%)
15K9.32 mi3.11 mi21101-26312741-14812741-14821487(Top 81%)12976(Top 86%)12976(Top 246%)
20K12.43 mi3.11 mi21375-27412876-13512876-13522097(Top 83%)13216(Top 87%)13216(Top 250%)
Half13.11 mi0.68 mi21445-7012908-3212908-3222739(Top 85%)13509(Top 89%)13509(Top 256%)
25K15.53 mi2.42 mi21782-33713064-15613064-15623081(Top 87%)13621(Top 90%)13621(Top 258%)
30K18.64 mi3.11 mi21957-17513123-5913123-5922512(Top 85%)13299(Top 88%)13299(Top 252%)
20M20.00 mi1.36 mi22005-4813135-1213135-1222428(Top 84%)13193(Top 87%)13193(Top 250%)
21M21.00 mi1.00 mi21906+9913083+5213083+5220216(Top 76%)12157(Top 80%)12157(Top 230%)
35K21.75 mi0.75 mi22169-26313187-10413187-10425906(Top 97%)14789(Top 97%)14789(Top 280%)
23M23.00 mi1.25 mi22227-5813202-1513202-1522803(Top 86%)13292(Top 88%)13292(Top 252%)
24M24.00 mi1.00 mi22203+2413191+1113191+1121794(Top 82%)12771(Top 84%)12771(Top 242%)
40K24.85 mi0.85 mi22142+6113156+3513156+3520425(Top 77%)12113(Top 80%)12113(Top 229%)
25.2M25.20 mi0.35 mi22103+3913131+2513131+2519642(Top 74%)11766(Top 78%)11766(Top 223%)
Finish26.22 mi1.02 mi22034+6913093+3813093+3819833(Top 74%)11912(Top 78%)11912(Top 225%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 81%
×21stories
+97ft-345ft

Overall

21487

Males

12976

M18-39

12976

5K→10K

3.1 - 6.2 mi

Top 75%
×5stories
+79ft-138ft

Overall

20003

Males

12285

M18-39

12285

10K→15K

6.2 - 9.3 mi

Top 81%
×3stories
+67ft-78ft

Overall

21487

Males

12976

M18-39

12976

15K→20K

9.3 - 12.4 mi

Top 83%
×5stories
+106ft-86ft

Overall

22097

Males

13216

M18-39

13216

20K→Half

12.4 - 13.1 mi

Top 85%
×2stories
+19ft-37ft

Overall

22739

Males

13509

M18-39

13509

Half→25K

13.1 - 15.5 mi

Top 87%
×4stories
+66ft-88ft

Overall

23081

Males

13621

M18-39

13621

25K→30K

15.5 - 18.6 mi

Top 85%
×9stories
+181ft-148ft

Overall

22512

Males

13299

M18-39

13299

30K→20M

18.6 - 20.0 mi

Top 84%
×5stories
+64ft-50ft

Overall

22428

Males

13193

M18-39

13193

20M→21M

20.0 - 21.0 mi

Top 76%
×8stories
+106ft-24ft

Overall

20216

Males

12157

M18-39

12157

21M→35K

21.0 - 21.8 mi

Top 97%
×7stories
+17ft-86ft

Overall

25906

Males

14789

M18-39

14789

35K→23M

21.8 - 23.0 mi

Top 86%
×5stories
+23ft-63ft

Overall

22803

Males

13292

M18-39

13292

23M→24M

23.0 - 24.0 mi

Top 82%
×6stories
+12ft-82ft

Overall

21794

Males

12771

M18-39

12771

24M→40K

24.0 - 24.9 mi

Top 77%
×1story
+6ft-20ft

Overall

20425

Males

12113

M18-39

12113

40K→25.2M

24.9 - 25.2 mi

Top 74%
×1story
+13ft-16ft

Overall

19642

Males

11766

M18-39

11766

25.2M→Finish

25.2 - 26.2 mi

Top 74%
×2stories
+22ft-21ft

Overall

19833

Males

11912

M18-39

11912

Passing Analysis

Category:
Athletes Passed
1423
Passed By
1990
Net Change
-567
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#21467
5K → 10K70576+629#21467#20838
10K → 15K79342-263#20838#21101
15K → 20K63337-274#21101#21375
20K → Half979-70#21375#21445
Half → 25K27364-337#21445#21782
25K → 30K96271-175#21782#21957
30K → 20M4795-48#21957#22005
20M → 21M12021+99#22005#21906
21M → 35K2265-263#21906#22169
35K → 23M3088-58#22169#22227
23M → 24M5127+24#22227#22203
24M → 40K7615+61#22203#22142
40K → 25.2M423+39#22142#22103
25.2M → Finish767+69#22103#22034
TOTALS14231990-567
📊

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