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BOSTON MARATHON 2023

Alec Reiss

Bib: 2346•M

MA

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 17%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
19:53
Rank: #1811
Start → 5K
19:53 | 6:24/mi
10K· 6.21 mi
39:43
Rank: #1942 (-131)
5K → 10K
19:50 | 6:23/mi
15K· 9.32 mi
59:11
Rank: #1781 (+161)
10K → 15K
19:28 | 6:16/mi
20K· 12.43 mi
1:18:32
Rank: #1606 (+175)
15K → 20K
19:21 | 6:14/mi
Half· 13.11 mi
1:22:39
Rank: #1558 (+48)
20K → Half
4:07 | 6:02/mi
25K· 15.53 mi
1:37:35
Rank: #1395 (+163)
Half → 25K
14:56 | 6:10/mi
30K· 18.64 mi
1:57:10
Rank: #1285 (+110)
25K → 30K
19:35 | 6:18/mi
20M
2:05:51
Rank: #1261 (+24)
30K → 20M
8:41 | 6:23/mi
21M
2:12:29
Rank: #1220 (+41)
20M → 21M
6:38 | 6:38/mi
35K· 21.75 mi
2:17:11
Rank: #1217 (+3)
21M → 35K
4:42 | 6:17/mi
23M
2:25:19
Rank: #1207 (+10)
35K → 23M
8:08 | 6:30/mi
24M
2:31:40
Rank: #1201 (+6)
23M → 24M
6:21 | 6:21/mi
40K· 24.85 mi
2:37:11
Rank: #1194 (+7)
24M → 40K
5:31 | 6:27/mi
25.2M
2:39:28
Rank: #1178 (+16)
40K → 25.2M
2:17 | 6:37/mi
Finish· 26.22 mi
2:45:29
Rank: #1136 (+42)
25.2M → Finish
6:01 | 5:54/mi

The Course

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Half Splits

1st Half· via Half⚖️ Balanced
Distance13.11 mi
Time1:22:39
Pace6:18 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time1:22:50
Pace6:19 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:20:3519:536:2419:53
6:24
-
10K
6.21 mi10:40:2539:436:2419:50
6:23
-0:01
15K
9.32 mi10:59:5359:116:2119:28
6:16
-0:07
20K
12.43 mi11:19:141:18:326:1919:21
6:14
-0:02
Half
13.11 mi11:23:211:22:396:184:07
6:02
-0:12
25K
15.53 mi11:38:171:37:356:1714:56
6:10
+0:08
30K
18.64 mi11:57:521:57:106:1719:35
6:18
+0:08
20M
20.00 mi12:06:332:05:516:188:41
6:23
+0:05
21M
21.00 mi12:13:112:12:296:196:38
6:38
+0:15
35K
21.75 mi12:17:532:17:116:184:42
6:17
-0:21
23M
23.00 mi12:26:012:25:196:198:08
6:30
+0:13
24M
24.00 mi12:32:222:31:406:196:21
6:21
-0:09
40K
24.85 mi12:37:532:37:116:195:31
6:27
+0:06
25.2M
25.20 mi12:40:102:39:286:202:17
6:37
+0:10
Finish
26.22 mi12:46:112:45:296:196:01
5:54
-0:43

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

5:54 /mi

Average Pace

6:19 /mi

Slowest Pace

6:38 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:28:26

90% of race

Time at Steady Pace

17:03

10% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:19 /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 mi10:20:3519:536:2419:53
6:24
#1811
10K
6.21 mi10:40:2539:436:2419:50
6:23
#1942
15K
9.32 mi10:59:5359:116:2119:28
6:16
#1781
20K
12.43 mi11:19:141:18:326:1919:21
6:14
#1606
Half
13.11 mi11:23:211:22:396:184:07
6:02
#1558
25K
15.53 mi11:38:171:37:356:1714:56
6:10
#1395
30K
18.64 mi11:57:521:57:106:1719:35
6:18
#1285
20M
20.00 mi12:06:332:05:516:188:41
6:23
#1261
21M
21.00 mi12:13:112:12:296:196:38
6:38
#1220
35K
21.75 mi12:17:532:17:116:184:42
6:17
#1217
23M
23.00 mi12:26:012:25:196:198:08
6:30
#1207
24M
24.00 mi12:32:222:31:406:196:21
6:21
#1201
40K
24.85 mi12:37:532:37:116:195:31
6:27
#1194
25.2M
25.20 mi12:40:102:39:286:202:17
6:37
#1178
Finish
26.22 mi12:46:112:45:296:196:01
5:54
#1136
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi1811172617261486(Top 6%)1418(Top 9%)1418(Top 27%)
10K6.21 mi3.10 mi1942-1311859-1331859-1332143(Top 8%)2052(Top 14%)2052(Top 39%)
15K9.32 mi3.11 mi1781+1611703+1561703+1561486(Top 6%)1418(Top 9%)1418(Top 27%)
20K12.43 mi3.11 mi1606+1751535+1681535+1681132(Top 4%)1080(Top 7%)1080(Top 20%)
Half13.11 mi0.68 mi1558+481489+461489+46867(Top 3%)825(Top 5%)825(Top 16%)
25K15.53 mi2.42 mi1395+1631332+1571332+157896(Top 3%)850(Top 6%)850(Top 16%)
30K18.64 mi3.11 mi1285+1101227+1051227+105920(Top 3%)875(Top 6%)875(Top 17%)
20M20.00 mi1.36 mi1261+241204+231204+231099(Top 4%)1053(Top 7%)1053(Top 20%)
21M21.00 mi1.00 mi1220+411166+381166+38936(Top 4%)888(Top 6%)888(Top 17%)
35K21.75 mi0.75 mi1217+31162+41162+41487(Top 6%)1411(Top 9%)1411(Top 27%)
23M23.00 mi1.25 mi1207+101153+91153+91388(Top 5%)1316(Top 9%)1316(Top 25%)
24M24.00 mi1.00 mi1201+61145+81145+81493(Top 6%)1412(Top 9%)1412(Top 27%)
40K24.85 mi0.85 mi1194+71138+71138+71367(Top 5%)1290(Top 9%)1290(Top 24%)
25.2M25.20 mi0.35 mi1178+161123+151123+15713(Top 3%)678(Top 4%)678(Top 13%)
Finish26.22 mi1.02 mi1136+421082+411082+41540(Top 2%)514(Top 3%)514(Top 10%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 6%
×21stories
+97ft-345ft

Overall

1486

Males

1418

M18-39

1418

5K→10K

3.1 - 6.2 mi

Top 8%
×5stories
+79ft-138ft

Overall

2143

Males

2052

M18-39

2052

10K→15K

6.2 - 9.3 mi

Top 6%
×3stories
+67ft-78ft

Overall

1486

Males

1418

M18-39

1418

15K→20K

9.3 - 12.4 mi

Top 4%
×5stories
+106ft-86ft

Overall

1132

Males

1080

M18-39

1080

20K→Half

12.4 - 13.1 mi

Top 3%
×2stories
+19ft-37ft

Overall

867

Males

825

M18-39

825

Half→25K

13.1 - 15.5 mi

Top 3%
×4stories
+66ft-88ft

Overall

896

Males

850

M18-39

850

25K→30K

15.5 - 18.6 mi

Top 3%
×9stories
+181ft-148ft

Overall

920

Males

875

M18-39

875

30K→20M

18.6 - 20.0 mi

Top 4%
×5stories
+64ft-50ft

Overall

1099

Males

1053

M18-39

1053

20M→21M

20.0 - 21.0 mi

Top 4%
×8stories
+106ft-24ft

Overall

936

Males

888

M18-39

888

21M→35K

21.0 - 21.8 mi

Top 6%
×7stories
+17ft-86ft

Overall

1487

Males

1411

M18-39

1411

35K→23M

21.8 - 23.0 mi

Top 5%
×5stories
+23ft-63ft

Overall

1388

Males

1316

M18-39

1316

23M→24M

23.0 - 24.0 mi

Top 6%
×6stories
+12ft-82ft

Overall

1493

Males

1412

M18-39

1412

24M→40K

24.0 - 24.9 mi

Top 5%
×1story
+6ft-20ft

Overall

1367

Males

1290

M18-39

1290

40K→25.2M

24.9 - 25.2 mi

Top 3%
×1story
+13ft-16ft

Overall

713

Males

678

M18-39

678

25.2M→Finish

25.2 - 26.2 mi

Top 2%
×2stories
+22ft-21ft

Overall

540

Males

514

M18-39

514

Passing Analysis

Category:
Athletes Passed
948
Passed By
273
Net Change
+675
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#1811
5K → 10K50181-131#1811#1942
10K → 15K17211+161#1942#1781
15K → 20K1761+175#1781#1606
20K → Half491+48#1606#1558
Half → 25K1630+163#1558#1395
25K → 30K1111+110#1395#1285
30K → 20M3713+24#1285#1261
20M → 21M454+41#1261#1220
21M → 35K1714+3#1220#1217
35K → 23M3323+10#1217#1207
23M → 24M1711+6#1207#1201
24M → 40K169+7#1201#1194
40K → 25.2M160+16#1194#1178
25.2M → Finish464+42#1178#1136
TOTALS948273+675
📊

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