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BOSTON MARATHON 2023

César Romero

Bib: 1777•M

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 4%
Gender (Male)
#0 / 15176
Top 7%
Division (M18-39)
#0 / 5285
Top 18%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
19:55
Rank: #1845
Start → 5K
19:55 | 6:25/mi
10K· 6.21 mi
39:17
Rank: #1645 (+200)
5K → 10K
19:22 | 6:14/mi
15K· 9.32 mi
58:33
Rank: #1499 (+146)
10K → 15K
19:16 | 6:12/mi
20K· 12.43 mi
1:17:57
Rank: #1391 (+108)
15K → 20K
19:24 | 6:15/mi
Half· 13.11 mi
1:22:10
Rank: #1382 (+9)
20K → Half
4:13 | 6:11/mi
25K· 15.53 mi
1:37:22
Rank: #1338 (+44)
Half → 25K
15:12 | 6:16/mi
30K· 18.64 mi
1:57:19
Rank: #1319 (+19)
25K → 30K
19:57 | 6:25/mi
20M
2:06:07
Rank: #1319
30K → 20M
8:48 | 6:29/mi
21M
2:12:50
Rank: #1286 (+33)
20M → 21M
6:43 | 6:43/mi
35K· 21.75 mi
2:17:28
Rank: #1269 (+17)
21M → 35K
4:38 | 6:12/mi
23M
2:25:27
Rank: #1226 (+43)
35K → 23M
7:59 | 6:23/mi
24M
2:31:42
Rank: #1207 (+19)
23M → 24M
6:15 | 6:15/mi
40K· 24.85 mi
2:37:08
Rank: #1187 (+20)
24M → 40K
5:26 | 6:21/mi
25.2M
2:39:29
Rank: #1184 (+3)
40K → 25.2M
2:21 | 6:49/mi
Finish· 26.22 mi
2:45:52
Rank: #1187 (-3)
25.2M → Finish
6:23 | 6:16/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:22:10
Pace6:16 /mi
2nd Half
Distance13.11 mi
Time1:23:42
Pace6:23 /mi
📊Positive Split: 1.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:20:1819:556:2519:55
6:25
-
10K
6.21 mi10:39:4039:176:1919:22
6:14
-0:11
15K
9.32 mi10:58:5658:336:1719:16
6:12
-0:02
20K
12.43 mi11:18:201:17:576:1619:24
6:15
+0:03
Half
13.11 mi11:22:331:22:106:164:13
6:11
-0:04
25K
15.53 mi11:37:451:37:226:1615:12
6:16
+0:05
30K
18.64 mi11:57:421:57:196:1819:57
6:25
+0:09
20M
20.00 mi12:06:302:06:076:188:48
6:29
+0:04
21M
21.00 mi12:13:132:12:506:206:43
6:43
+0:14
35K
21.75 mi12:17:512:17:286:194:38
6:12
-0:31
23M
23.00 mi12:25:502:25:276:197:59
6:23
+0:11
24M
24.00 mi12:32:052:31:426:196:15
6:15
-0:08
40K
24.85 mi12:37:312:37:086:195:26
6:21
+0:06
25.2M
25.20 mi12:39:522:39:296:202:21
6:49
+0:28
Finish
26.22 mi12:46:152:45:526:206:23
6:16
-0:33

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

6:11 /mi

Average Pace

6:20 /mi

Slowest Pace

6:49 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:43:31

99% of race

Time at Steady Pace

2:21

1% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:20 /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 mi10:20:1819:556:2519:55
6:25
#1845
10K
6.21 mi10:39:4039:176:1919:22
6:14
#1645
15K
9.32 mi10:58:5658:336:1719:16
6:12
#1499
20K
12.43 mi11:18:201:17:576:1619:24
6:15
#1391
Half
13.11 mi11:22:331:22:106:164:13
6:11
#1382
25K
15.53 mi11:37:451:37:226:1615:12
6:16
#1338
30K
18.64 mi11:57:421:57:196:1819:57
6:25
#1319
20M
20.00 mi12:06:302:06:076:188:48
6:29
#1319
21M
21.00 mi12:13:132:12:506:206:43
6:43
#1286
35K
21.75 mi12:17:512:17:286:194:38
6:12
#1269
23M
23.00 mi12:25:502:25:276:197:59
6:23
#1226
24M
24.00 mi12:32:052:31:426:196:15
6:15
#1207
40K
24.85 mi12:37:312:37:086:195:26
6:21
#1187
25.2M
25.20 mi12:39:522:39:296:202:21
6:49
#1184
Finish
26.22 mi12:46:152:45:526:206:23
6:16
#1187
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi1845176017601249(Top 5%)1190(Top 8%)1190(Top 23%)
10K6.21 mi3.10 mi1645+2001570+1901570+1901472(Top 6%)1405(Top 9%)1405(Top 27%)
15K9.32 mi3.11 mi1499+1461429+1411429+1411249(Top 5%)1190(Top 8%)1190(Top 23%)
20K12.43 mi3.11 mi1391+1081325+1041325+1041188(Top 4%)1135(Top 7%)1135(Top 21%)
Half13.11 mi0.68 mi1382+91317+81317+81276(Top 5%)1224(Top 8%)1224(Top 23%)
25K15.53 mi2.42 mi1338+441277+401277+401215(Top 5%)1161(Top 8%)1161(Top 22%)
30K18.64 mi3.11 mi1319+191259+181259+181278(Top 5%)1220(Top 8%)1220(Top 23%)
20M20.00 mi1.36 mi13191260-11260-11348(Top 5%)1285(Top 8%)1285(Top 24%)
21M21.00 mi1.00 mi1286+331230+301230+301137(Top 4%)1083(Top 7%)1083(Top 20%)
35K21.75 mi0.75 mi1269+171212+181212+181214(Top 5%)1157(Top 8%)1157(Top 22%)
23M23.00 mi1.25 mi1226+431170+421170+421029(Top 4%)976(Top 6%)976(Top 18%)
24M24.00 mi1.00 mi1207+191151+191151+191187(Top 4%)1124(Top 7%)1124(Top 21%)
40K24.85 mi0.85 mi1187+201131+201131+201053(Top 4%)996(Top 7%)996(Top 19%)
25.2M25.20 mi0.35 mi1184+31129+21129+21185(Top 4%)1124(Top 7%)1124(Top 21%)
Finish26.22 mi1.02 mi1187-31131-21131-21478(Top 6%)1397(Top 9%)1397(Top 26%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 5%
×21stories
+97ft-345ft

Overall

1249

Males

1190

M18-39

1190

5K→10K

3.1 - 6.2 mi

Top 6%
×5stories
+79ft-138ft

Overall

1472

Males

1405

M18-39

1405

10K→15K

6.2 - 9.3 mi

Top 5%
×3stories
+67ft-78ft

Overall

1249

Males

1190

M18-39

1190

15K→20K

9.3 - 12.4 mi

Top 4%
×5stories
+106ft-86ft

Overall

1188

Males

1135

M18-39

1135

20K→Half

12.4 - 13.1 mi

Top 5%
×2stories
+19ft-37ft

Overall

1276

Males

1224

M18-39

1224

Half→25K

13.1 - 15.5 mi

Top 5%
×4stories
+66ft-88ft

Overall

1215

Males

1161

M18-39

1161

25K→30K

15.5 - 18.6 mi

Top 5%
×9stories
+181ft-148ft

Overall

1278

Males

1220

M18-39

1220

30K→20M

18.6 - 20.0 mi

Top 5%
×5stories
+64ft-50ft

Overall

1348

Males

1285

M18-39

1285

20M→21M

20.0 - 21.0 mi

Top 4%
×8stories
+106ft-24ft

Overall

1137

Males

1083

M18-39

1083

21M→35K

21.0 - 21.8 mi

Top 5%
×7stories
+17ft-86ft

Overall

1214

Males

1157

M18-39

1157

35K→23M

21.8 - 23.0 mi

Top 4%
×5stories
+23ft-63ft

Overall

1029

Males

976

M18-39

976

23M→24M

23.0 - 24.0 mi

Top 4%
×6stories
+12ft-82ft

Overall

1187

Males

1124

M18-39

1124

24M→40K

24.0 - 24.9 mi

Top 4%
×1story
+6ft-20ft

Overall

1053

Males

996

M18-39

996

40K→25.2M

24.9 - 25.2 mi

Top 4%
×1story
+13ft-16ft

Overall

1185

Males

1124

M18-39

1124

25.2M→Finish

25.2 - 26.2 mi

Top 6%
×2stories
+22ft-21ft

Overall

1478

Males

1397

M18-39

1397

Passing Analysis

Category:
Athletes Passed
826
Passed By
168
Net Change
+658
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#1845
5K → 10K22323+200#1845#1645
10K → 15K15610+146#1645#1499
15K → 20K1179+108#1499#1391
20K → Half156+9#1391#1382
Half → 25K539+44#1382#1338
25K → 30K5031+19#1338#1319
30K → 20M21210#1319#1319
20M → 21M429+33#1319#1286
21M → 35K236+17#1286#1269
35K → 23M474+43#1269#1226
23M → 24M278+19#1226#1207
24M → 40K233+20#1207#1187
40K → 25.2M107+3#1187#1184
25.2M → Finish1922-3#1184#1187
TOTALS826168+658
📊

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