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BOSTON MARATHON 2023

Alexander Wallach

Bib: 1829•M

MS

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 10%
Gender (Male)
#0 / 15176
Top 17%
Division (M18-39)
#0 / 5285
Top 37%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
19:58
Rank: #1924
Start → 5K
19:58 | 6:26/mi
10K· 6.21 mi
39:41
Rank: #1929 (-5)
5K → 10K
19:43 | 6:21/mi
15K· 9.32 mi
59:35
Rank: #1976 (-47)
10K → 15K
19:54 | 6:24/mi
20K· 12.43 mi
1:19:42
Rank: #2004 (-28)
15K → 20K
20:07 | 6:28/mi
Half· 13.11 mi
1:24:03
Rank: #2000 (+4)
20K → Half
4:21 | 6:23/mi
25K· 15.53 mi
1:39:41
Rank: #1973 (+27)
Half → 25K
15:38 | 6:27/mi
30K· 18.64 mi
2:00:31
Rank: #2057 (-84)
25K → 30K
20:50 | 6:42/mi
20M
2:09:50
Rank: #2099 (-42)
30K → 20M
9:19 | 6:51/mi
21M
2:17:10
Rank: #2165 (-66)
20M → 21M
7:20 | 7:20/mi
35K· 21.75 mi
2:22:12
Rank: #2198 (-33)
21M → 35K
5:02 | 6:44/mi
23M
2:31:09
Rank: #2277 (-79)
35K → 23M
8:57 | 7:09/mi
24M
2:38:11
Rank: #2348 (-71)
23M → 24M
7:02 | 7:02/mi
40K· 24.85 mi
2:44:26
Rank: #2409 (-61)
24M → 40K
6:15 | 7:19/mi
25.2M
2:47:12
Rank: #2448 (-39)
40K → 25.2M
2:46 | 8:01/mi
Finish· 26.22 mi
2:54:47
Rank: #2645 (-197)
25.2M → Finish
7:35 | 7:26/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:24:03
Pace6:25 /mi
2nd Half
Distance13.11 mi
Time1:30:44
Pace6:55 /mi
📊Positive Split: 8.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:20:2719:586:2619:58
6:26
-
10K
6.21 mi10:40:1039:416:2319:43
6:21
-0:05
15K
9.32 mi11:00:0459:356:2419:54
6:24
+0:03
20K
12.43 mi11:20:111:19:426:2520:07
6:28
+0:04
Half
13.11 mi11:24:321:24:036:254:21
6:23
-0:05
25K
15.53 mi11:40:101:39:416:2515:38
6:27
+0:04
30K
18.64 mi12:01:002:00:316:2820:50
6:42
+0:15
20M
20.00 mi12:10:192:09:506:299:19
6:51
+0:09
21M
21.00 mi12:17:392:17:106:327:20
7:20
+0:29
35K
21.75 mi12:22:412:22:126:325:02
6:44
-0:36
23M
23.00 mi12:31:382:31:096:348:57
7:09
+0:25
24M
24.00 mi12:38:402:38:116:357:02
7:02
-0:07
40K
24.85 mi12:44:552:44:266:376:15
7:19
+0:17
25.2M
25.20 mi12:47:412:47:126:382:46
8:01
+0:42
Finish
26.22 mi12:55:162:54:476:407:35
7:26
-0:35

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

6:21 /mi

Average Pace

6:40 /mi

Slowest Pace

8:01 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:39:41

57% of race

Time at Steady Pace

35:11

20% of race

Time at Slower Pace

39:55

23% of race

Average Pace: 6:40 /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 mi10:20:2719:586:2619:58
6:26
#1924
10K
6.21 mi10:40:1039:416:2319:43
6:21
#1929
15K
9.32 mi11:00:0459:356:2419:54
6:24
#1976
20K
12.43 mi11:20:111:19:426:2520:07
6:28
#2004
Half
13.11 mi11:24:321:24:036:254:21
6:23
#2000
25K
15.53 mi11:40:101:39:416:2515:38
6:27
#1973
30K
18.64 mi12:01:002:00:316:2820:50
6:42
#2057
20M
20.00 mi12:10:192:09:506:299:19
6:51
#2099
21M
21.00 mi12:17:392:17:106:327:20
7:20
#2165
35K
21.75 mi12:22:412:22:126:325:02
6:44
#2198
23M
23.00 mi12:31:382:31:096:348:57
7:09
#2277
24M
24.00 mi12:38:402:38:116:357:02
7:02
#2348
40K
24.85 mi12:44:552:44:266:376:15
7:19
#2409
25.2M
25.20 mi12:47:412:47:126:382:46
8:01
#2448
Finish
26.22 mi12:55:162:54:476:407:35
7:26
#2645
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi1924183518352138(Top 8%)2051(Top 14%)2051(Top 39%)
10K6.21 mi3.10 mi1929-51846-111846-111968(Top 7%)1885(Top 12%)1885(Top 36%)
15K9.32 mi3.11 mi1976-471891-451891-452138(Top 8%)2051(Top 14%)2051(Top 39%)
20K12.43 mi3.11 mi2004-281919-281919-282166(Top 8%)2078(Top 14%)2078(Top 39%)
Half13.11 mi0.68 mi2000+41916+31916+32141(Top 8%)2057(Top 14%)2057(Top 39%)
25K15.53 mi2.42 mi1973+271890+261890+261949(Top 7%)1866(Top 12%)1866(Top 35%)
30K18.64 mi3.11 mi2057-841973-831973-832423(Top 9%)2307(Top 15%)2307(Top 44%)
20M20.00 mi1.36 mi2099-422012-392012-393132(Top 12%)2938(Top 19%)2938(Top 56%)
21M21.00 mi1.00 mi2165-662074-622074-623750(Top 14%)3473(Top 23%)3473(Top 66%)
35K21.75 mi0.75 mi2198-332106-322106-323675(Top 14%)3392(Top 22%)3392(Top 64%)
23M23.00 mi1.25 mi2277-792181-752181-754519(Top 17%)4091(Top 27%)4091(Top 77%)
24M24.00 mi1.00 mi2348-712247-662247-664808(Top 18%)4277(Top 28%)4277(Top 81%)
40K24.85 mi0.85 mi2409-612304-572304-575467(Top 21%)4654(Top 31%)4654(Top 88%)
25.2M25.20 mi0.35 mi2448-392338-342338-346507(Top 24%)5233(Top 34%)5233(Top 99%)
Finish26.22 mi1.02 mi2645-1972521-1832521-1838031(Top 30%)6167(Top 41%)6167(Top 117%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 8%
×21stories
+97ft-345ft

Overall

2138

Males

2051

M18-39

2051

5K→10K

3.1 - 6.2 mi

Top 7%
×5stories
+79ft-138ft

Overall

1968

Males

1885

M18-39

1885

10K→15K

6.2 - 9.3 mi

Top 8%
×3stories
+67ft-78ft

Overall

2138

Males

2051

M18-39

2051

15K→20K

9.3 - 12.4 mi

Top 8%
×5stories
+106ft-86ft

Overall

2166

Males

2078

M18-39

2078

20K→Half

12.4 - 13.1 mi

Top 8%
×2stories
+19ft-37ft

Overall

2141

Males

2057

M18-39

2057

Half→25K

13.1 - 15.5 mi

Top 7%
×4stories
+66ft-88ft

Overall

1949

Males

1866

M18-39

1866

25K→30K

15.5 - 18.6 mi

Top 9%
×9stories
+181ft-148ft

Overall

2423

Males

2307

M18-39

2307

30K→20M

18.6 - 20.0 mi

Top 12%
×5stories
+64ft-50ft

Overall

3132

Males

2938

M18-39

2938

20M→21M

20.0 - 21.0 mi

Top 14%
×8stories
+106ft-24ft

Overall

3750

Males

3473

M18-39

3473

21M→35K

21.0 - 21.8 mi

Top 14%
×7stories
+17ft-86ft

Overall

3675

Males

3392

M18-39

3392

35K→23M

21.8 - 23.0 mi

Top 17%
×5stories
+23ft-63ft

Overall

4519

Males

4091

M18-39

4091

23M→24M

23.0 - 24.0 mi

Top 18%
×6stories
+12ft-82ft

Overall

4808

Males

4277

M18-39

4277

24M→40K

24.0 - 24.9 mi

Top 21%
×1story
+6ft-20ft

Overall

5467

Males

4654

M18-39

4654

40K→25.2M

24.9 - 25.2 mi

Top 24%
×1story
+13ft-16ft

Overall

6507

Males

5233

M18-39

5233

25.2M→Finish

25.2 - 26.2 mi

Top 30%
×2stories
+22ft-21ft

Overall

8031

Males

6167

M18-39

6167

Passing Analysis

Category:
Athletes Passed
387
Passed By
1108
Net Change
-721
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#1924
5K → 10K98103-5#1924#1929
10K → 15K4390-47#1929#1976
15K → 20K4169-28#1976#2004
20K → Half117+4#2004#2000
Half → 25K5730+27#2000#1973
25K → 30K46130-84#1973#2057
30K → 20M2163-42#2057#2099
20M → 21M1783-66#2099#2165
21M → 35K841-33#2165#2198
35K → 23M1291-79#2198#2277
23M → 24M1384-71#2277#2348
24M → 40K1071-61#2348#2409
40K → 25.2M746-39#2409#2448
25.2M → Finish3200-197#2448#2645
TOTALS3871108-721
📊

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