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BOSTON MARATHON 2023

Ari Schwartz

Bib: 11637•M

MA

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 39%
Gender (Male)
#0 / 15176
Masters (Masters Men)
#0 / 9891
Top 43%
Division (M50-54)
#0 / 2052
Top 43%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Watch your race unfold from start to finish

Start
0:00:00
Race begins
5K· 3.11 mi
23:44
Rank: #10906
Start → 5K
23:44 | 7:38/mi
10K· 6.21 mi
47:33
Rank: #11359 (-453)
5K → 10K
23:49 | 7:40/mi
15K· 9.32 mi
1:11:24
Rank: #11449 (-90)
10K → 15K
23:51 | 7:41/mi
20K· 12.43 mi
1:35:17
Rank: #11242 (+207)
15K → 20K
23:53 | 7:41/mi
Half· 13.11 mi
1:40:29
Rank: #11226 (+16)
20K → Half
5:12 | 7:37/mi
25K· 15.53 mi
1:59:15
Rank: #11114 (+112)
Half → 25K
18:46 | 7:44/mi
30K· 18.64 mi
2:23:37
Rank: #10813 (+301)
25K → 30K
24:22 | 7:51/mi
20M
2:34:14
Rank: #10647 (+166)
30K → 20M
10:37 | 7:49/mi
21M
2:42:35
Rank: #10552 (+95)
20M → 21M
8:21 | 8:21/mi
35K· 21.75 mi
2:48:26
Rank: #10533 (+19)
21M → 35K
5:51 | 7:49/mi
23M
2:58:29
Rank: #10477 (+56)
35K → 23M
10:03 | 8:02/mi
24M
3:06:28
Rank: #10501 (-24)
23M → 24M
7:59 | 7:59/mi
40K· 24.85 mi
3:13:14
Rank: #10433 (+68)
24M → 40K
6:46 | 7:55/mi
25.2M
3:16:07
Rank: #10386 (+47)
40K → 25.2M
2:53 | 8:22/mi
Finish· 26.22 mi
3:23:41
Rank: #10261 (+125)
25.2M → Finish
7:34 | 7:26/mi

Course Map & Elevation

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:40:29
Pace7:40 /mi
2nd Half
Distance13.11 mi
Time1:43:12
Pace7:52 /mi
📊Positive Split: 2.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:50:3223:447:3823:44
7:38
-
10K
6.21 mi11:14:2147:337:3923:49
7:40
+0:02
15K
9.32 mi11:38:121:11:247:4023:51
7:41
+0:01
20K
12.43 mi12:02:051:35:177:4023:53
7:41
0:00
Half
13.11 mi12:07:171:40:297:405:12
7:37
-0:04
25K
15.53 mi12:26:031:59:157:4118:46
7:44
+0:07
30K
18.64 mi12:50:252:23:377:4224:22
7:51
+0:07
20M
20.00 mi13:01:022:34:147:4310:37
7:49
-0:02
21M
21.00 mi13:09:232:42:357:458:21
8:21
+0:32
35K
21.75 mi13:15:142:48:267:455:51
7:49
-0:32
23M
23.00 mi13:25:172:58:297:4610:03
8:02
+0:13
24M
24.00 mi13:33:163:06:287:467:59
7:59
-0:03
40K
24.85 mi13:40:023:13:147:466:46
7:55
-0:04
25.2M
25.20 mi13:42:553:16:077:472:53
8:22
+0:27
Finish
26.22 mi13:50:293:23:417:467:34
7:26
-0:56

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

7:26 /mi

Average Pace

7:46 /mi

Slowest Pace

8:22 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Bar length shows time spent in each segment. Colors mark your faster to slower segments, relative to your own pace.

Time at Faster Pace

3:12:27

94% of race

Time at Steady Pace

11:14

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:46 /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

Enhanced split table showing pace trends through mini sparkline visualizations.

Overall Pace Trend

CheckpointDistanceTime of DayTimeAvg PaceSegmentPaceTrendRank
5K
3.11 mi10:50:3223:447:3823:44
7:38
#10906
10K
6.21 mi11:14:2147:337:3923:49
7:40
#11359
15K
9.32 mi11:38:121:11:247:4023:51
7:41
#11449
20K
12.43 mi12:02:051:35:177:4023:53
7:41
#11242
Half
13.11 mi12:07:171:40:297:405:12
7:37
#11226
25K
15.53 mi12:26:031:59:157:4118:46
7:44
#11114
30K
18.64 mi12:50:252:23:377:4224:22
7:51
#10813
20M
20.00 mi13:01:022:34:147:4310:37
7:49
#10647
21M
21.00 mi13:09:232:42:357:458:21
8:21
#10552
35K
21.75 mi13:15:142:48:267:455:51
7:49
#10533
23M
23.00 mi13:25:172:58:297:4610:03
8:02
#10477
24M
24.00 mi13:33:163:06:287:467:59
7:59
#10501
40K
24.85 mi13:40:023:13:147:466:46
7:55
#10433
25.2M
25.20 mi13:42:553:16:077:472:53
8:22
#10386
Finish
26.22 mi13:50:293:23:417:467:34
7:26
#10261
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
5K3.11 mi3.11 mi109068611861111624(Top 44%)8914(Top 59%)8914(Top 434%)
10K6.21 mi3.10 mi11359-4538819-2088819-20811918(Top 45%)9079(Top 60%)9079(Top 442%)
15K9.32 mi3.11 mi11449-908858-398858-3911624(Top 44%)8914(Top 59%)8914(Top 434%)
20K12.43 mi3.11 mi11242+2078759+998759+9910811(Top 41%)8477(Top 56%)8477(Top 413%)
Half13.11 mi0.68 mi11226+168752+78752+711137(Top 42%)8669(Top 57%)8669(Top 422%)
25K15.53 mi2.42 mi11114+1128679+738679+7310596(Top 40%)8296(Top 55%)8296(Top 404%)
30K18.64 mi3.11 mi10813+3018494+1858494+1859678(Top 36%)7658(Top 50%)7658(Top 373%)
20M20.00 mi1.36 mi10647+1668378+1168378+1168960(Top 34%)7174(Top 47%)7174(Top 350%)
21M21.00 mi1.00 mi10552+958311+678311+679515(Top 36%)7353(Top 48%)7353(Top 358%)
35K21.75 mi0.75 mi10533+198283+288283+2810767(Top 40%)7990(Top 53%)7990(Top 389%)
23M23.00 mi1.25 mi10477+568225+588225+589918(Top 37%)7433(Top 49%)7433(Top 362%)
24M24.00 mi1.00 mi10501-248204+218204+2111096(Top 42%)7938(Top 52%)7938(Top 387%)
40K24.85 mi0.85 mi10433+688144+608144+609419(Top 35%)7046(Top 46%)7046(Top 343%)
25.2M25.20 mi0.35 mi10386+478104+408104+408649(Top 32%)6550(Top 43%)6550(Top 319%)
Finish26.22 mi1.02 mi10261+1258020+848020+847954(Top 30%)6146(Top 40%)6146(Top 300%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 44%
×21stories
+97ft-345ft

Overall

11624

Males

8914

M50-54

8914

5K→10K

3.1 - 6.2 mi

Top 45%
×5stories
+79ft-138ft

Overall

11918

Males

9079

M50-54

9079

10K→15K

6.2 - 9.3 mi

Top 44%
×3stories
+67ft-78ft

Overall

11624

Males

8914

M50-54

8914

15K→20K

9.3 - 12.4 mi

Top 41%
×5stories
+106ft-86ft

Overall

10811

Males

8477

M50-54

8477

20K→Half

12.4 - 13.1 mi

Top 42%
×2stories
+19ft-37ft

Overall

11137

Males

8669

M50-54

8669

Half→25K

13.1 - 15.5 mi

Top 40%
×4stories
+66ft-88ft

Overall

10596

Males

8296

M50-54

8296

25K→30K

15.5 - 18.6 mi

Top 36%
×9stories
+181ft-148ft

Overall

9678

Males

7658

M50-54

7658

30K→20M

18.6 - 20.0 mi

Top 34%
×5stories
+64ft-50ft

Overall

8960

Males

7174

M50-54

7174

20M→21M

20.0 - 21.0 mi

Top 36%
×8stories
+106ft-24ft

Overall

9515

Males

7353

M50-54

7353

21M→35K

21.0 - 21.8 mi

Top 40%
×7stories
+17ft-86ft

Overall

10767

Males

7990

M50-54

7990

35K→23M

21.8 - 23.0 mi

Top 37%
×5stories
+23ft-63ft

Overall

9918

Males

7433

M50-54

7433

23M→24M

23.0 - 24.0 mi

Top 42%
×6stories
+12ft-82ft

Overall

11096

Males

7938

M50-54

7938

24M→40K

24.0 - 24.9 mi

Top 35%
×1story
+6ft-20ft

Overall

9419

Males

7046

M50-54

7046

40K→25.2M

24.9 - 25.2 mi

Top 32%
×1story
+13ft-16ft

Overall

8649

Males

6550

M50-54

6550

25.2M→Finish

25.2 - 26.2 mi

Top 30%
×2stories
+22ft-21ft

Overall

7954

Males

6146

M50-54

6146

Passing Analysis

Category:
Athletes Passed
1949*
Passed By
1304
Net Change
+645
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#10906
5K → 10K140593-453#10906#11359
10K → 15K152242-90#11359#11449
15K → 20K27366+207#11449#11242
20K → Half3317+16#11242#11226
Half → 25K17866+112#11226#11114
25K → 30K34443+301#11114#10813
30K → 20M181*15+166#10813#10647
20M → 21M12227+95#10647#10552
21M → 35K5435+19#10552#10533
35K → 23M10549+56#10533#10477
23M → 24M6185-24#10477#10501
24M → 40K10032+68#10501#10433
40K → 25.2M6114+47#10433#10386
25.2M → Finish14520+125#10386#10261
TOTALS1949*1304+645

* Includes athletes who did not complete a segment (DNF/DNQ).

📊

Passing Visuals

Category:

📈Position Graph

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🎨Heatmap Timeline

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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