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BOSTON MARATHON 2023

Ryan Zmierski

Bib: 4140•M

AZ

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 14%
Gender (Male)
#0 / 15176
Top 24%
Division (M18-39)
#0 / 5285
Top 48%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
21:22
Rank: #5360
Start → 5K
21:22 | 6:53/mi
10K· 6.21 mi
42:27
Rank: #5224 (+136)
5K → 10K
21:05 | 6:47/mi
15K· 9.32 mi
1:03:41
Rank: #5282 (-58)
10K → 15K
21:14 | 6:50/mi
20K· 12.43 mi
1:24:52
Rank: #5114 (+168)
15K → 20K
21:11 | 6:49/mi
Half· 13.11 mi
1:29:29
Rank: #5115 (-1)
20K → Half
4:37 | 6:46/mi
25K· 15.53 mi
1:46:05
Rank: #4977 (+138)
Half → 25K
16:36 | 6:51/mi
30K· 18.64 mi
2:07:39
Rank: #4733 (+244)
25K → 30K
21:34 | 6:56/mi
20M
2:17:01
Rank: #4585 (+148)
30K → 20M
9:22 | 6:54/mi
21M
2:24:13
Rank: #4465 (+120)
20M → 21M
7:12 | 7:12/mi
35K· 21.75 mi
2:29:18
Rank: #4440 (+25)
21M → 35K
5:05 | 6:48/mi
23M
2:37:55
Rank: #4315 (+125)
35K → 23M
8:37 | 6:53/mi
24M
2:44:26
Rank: #4200 (+115)
23M → 24M
6:31 | 6:31/mi
40K· 24.85 mi
2:50:09
Rank: #4076 (+124)
24M → 40K
5:43 | 6:41/mi
25.2M
2:52:35
Rank: #4018 (+58)
40K → 25.2M
2:26 | 7:03/mi
Finish· 26.22 mi
2:58:58
Rank: #3854 (+164)
25.2M → Finish
6:23 | 6:16/mi

The Course

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Half Splits

1st Half· via Half⚖️ Balanced
Distance13.11 mi
Time1:29:29
Pace6:50 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time1:29:29
Pace6:50 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:23:2421:226:5321:22
6:53
-
10K
6.21 mi10:44:2942:276:5021:05
6:47
-0:06
15K
9.32 mi11:05:431:03:416:5021:14
6:50
+0:03
20K
12.43 mi11:26:541:24:526:5021:11
6:49
-0:01
Half
13.11 mi11:31:311:29:296:504:37
6:46
-0:03
25K
15.53 mi11:48:071:46:056:5016:36
6:51
+0:05
30K
18.64 mi12:09:412:07:396:5121:34
6:56
+0:05
20M
20.00 mi12:19:032:17:016:519:22
6:54
-0:02
21M
21.00 mi12:26:152:24:136:527:12
7:12
+0:18
35K
21.75 mi12:31:202:29:186:525:05
6:48
-0:24
23M
23.00 mi12:39:572:37:556:528:37
6:53
+0:05
24M
24.00 mi12:46:282:44:266:516:31
6:31
-0:22
40K
24.85 mi12:52:112:50:096:515:43
6:41
+0:10
25.2M
25.20 mi12:54:372:52:356:512:26
7:03
+0:22
Finish
26.22 mi13:01:002:58:586:506:23
6:16
-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

6:16 /mi

Average Pace

6:50 /mi

Slowest Pace

7:12 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:18:24

77% of race

Time at Steady Pace

40:34

23% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:50 /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 mi10:23:2421:226:5321:22
6:53
#5360
10K
6.21 mi10:44:2942:276:5021:05
6:47
#5224
15K
9.32 mi11:05:431:03:416:5021:14
6:50
#5282
20K
12.43 mi11:26:541:24:526:5021:11
6:49
#5114
Half
13.11 mi11:31:311:29:296:504:37
6:46
#5115
25K
15.53 mi11:48:071:46:056:5016:36
6:51
#4977
30K
18.64 mi12:09:412:07:396:5121:34
6:56
#4733
20M
20.00 mi12:19:032:17:016:519:22
6:54
#4585
21M
21.00 mi12:26:152:24:136:527:12
7:12
#4465
35K
21.75 mi12:31:202:29:186:525:05
6:48
#4440
23M
23.00 mi12:39:572:37:556:528:37
6:53
#4315
24M
24.00 mi12:46:282:44:266:516:31
6:31
#4200
40K
24.85 mi12:52:112:50:096:515:43
6:41
#4076
25.2M
25.20 mi12:54:372:52:356:512:26
7:03
#4018
Finish
26.22 mi13:01:002:58:586:506:23
6:16
#3854
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi5360495149515411(Top 20%)4988(Top 33%)4988(Top 94%)
10K6.21 mi3.10 mi5224+1364835+1164835+1165130(Top 19%)4744(Top 31%)4744(Top 90%)
15K9.32 mi3.11 mi5282-584891-564891-565411(Top 20%)4988(Top 33%)4988(Top 94%)
20K12.43 mi3.11 mi5114+1684744+1474744+1474589(Top 17%)4274(Top 28%)4274(Top 81%)
Half13.11 mi0.68 mi5115-14746-24746-24908(Top 18%)4540(Top 30%)4540(Top 86%)
25K15.53 mi2.42 mi4977+1384624+1224624+1224531(Top 17%)4218(Top 28%)4218(Top 80%)
30K18.64 mi3.11 mi4733+2444410+2144410+2143942(Top 15%)3685(Top 24%)3685(Top 70%)
20M20.00 mi1.36 mi4585+1484275+1354275+1353384(Top 13%)3167(Top 21%)3167(Top 60%)
21M21.00 mi1.00 mi4465+1204167+1084167+1083109(Top 12%)2913(Top 19%)2913(Top 55%)
35K21.75 mi0.75 mi4440+254141+264141+264141(Top 16%)3791(Top 25%)3791(Top 72%)
23M23.00 mi1.25 mi4315+1254036+1054036+1053128(Top 12%)2914(Top 19%)2914(Top 55%)
24M24.00 mi1.00 mi4200+1153930+1063930+1062185(Top 8%)2051(Top 14%)2051(Top 39%)
40K24.85 mi0.85 mi4076+1243813+1173813+1172307(Top 9%)2145(Top 14%)2145(Top 41%)
25.2M25.20 mi0.35 mi4018+583761+523761+521972(Top 7%)1855(Top 12%)1855(Top 35%)
Finish26.22 mi1.02 mi3854+1643619+1423619+1421509(Top 6%)1428(Top 9%)1428(Top 27%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 20%
×21stories
+97ft-345ft

Overall

5411

Males

4988

M18-39

4988

5K→10K

3.1 - 6.2 mi

Top 19%
×5stories
+79ft-138ft

Overall

5130

Males

4744

M18-39

4744

10K→15K

6.2 - 9.3 mi

Top 20%
×3stories
+67ft-78ft

Overall

5411

Males

4988

M18-39

4988

15K→20K

9.3 - 12.4 mi

Top 17%
×5stories
+106ft-86ft

Overall

4589

Males

4274

M18-39

4274

20K→Half

12.4 - 13.1 mi

Top 18%
×2stories
+19ft-37ft

Overall

4908

Males

4540

M18-39

4540

Half→25K

13.1 - 15.5 mi

Top 17%
×4stories
+66ft-88ft

Overall

4531

Males

4218

M18-39

4218

25K→30K

15.5 - 18.6 mi

Top 15%
×9stories
+181ft-148ft

Overall

3942

Males

3685

M18-39

3685

30K→20M

18.6 - 20.0 mi

Top 13%
×5stories
+64ft-50ft

Overall

3384

Males

3167

M18-39

3167

20M→21M

20.0 - 21.0 mi

Top 12%
×8stories
+106ft-24ft

Overall

3109

Males

2913

M18-39

2913

21M→35K

21.0 - 21.8 mi

Top 16%
×7stories
+17ft-86ft

Overall

4141

Males

3791

M18-39

3791

35K→23M

21.8 - 23.0 mi

Top 12%
×5stories
+23ft-63ft

Overall

3128

Males

2914

M18-39

2914

23M→24M

23.0 - 24.0 mi

Top 8%
×6stories
+12ft-82ft

Overall

2185

Males

2051

M18-39

2051

24M→40K

24.0 - 24.9 mi

Top 9%
×1story
+6ft-20ft

Overall

2307

Males

2145

M18-39

2145

40K→25.2M

24.9 - 25.2 mi

Top 7%
×1story
+13ft-16ft

Overall

1972

Males

1855

M18-39

1855

25.2M→Finish

25.2 - 26.2 mi

Top 6%
×2stories
+22ft-21ft

Overall

1509

Males

1428

M18-39

1428

Passing Analysis

Category:
Athletes Passed
2001
Passed By
495
Net Change
+1506
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#5360
5K → 10K273137+136#5360#5224
10K → 15K87145-58#5224#5282
15K → 20K20941+168#5282#5114
20K → Half2223-1#5114#5115
Half → 25K16931+138#5115#4977
25K → 30K27632+244#4977#4733
30K → 20M1568+148#4733#4585
20M → 21M13111+120#4585#4465
21M → 35K5328+25#4465#4440
35K → 23M14722+125#4440#4315
23M → 24M12510+115#4315#4200
24M → 40K1273+124#4200#4076
40K → 25.2M602+58#4076#4018
25.2M → Finish1662+164#4018#3854
TOTALS2001495+1506
📊

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