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BOSTON MARATHON 2023

Aaron Schwartzbard

Bib: 2599•M

DC

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 9%
Gender (Male)
#0 / 15176
Top 15%
Masters (Masters Men)
#0 / 9891
Top 5%
Division (M45-49)
#0 / 2252
Top 5%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent
Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
5K· 3.11 mi
6:33/mi
20:22
↑ 97↓ 3451.5%
10K· 6.21 mi
6:24/mi
40:16
↑ 79↓ 1380.4%
15K· 9.32 mi
6:26/mi
1:00:15
↑ 67↓ 78
20K· 12.43 mi
6:33/mi
1:20:36
↑ 106↓ 860.1%
Half· 13.11 mi
6:27/mi
1:25:00
↑ 19↓ 370.5%
25K· 15.53 mi
6:37/mi
1:41:02
↑ 66↓ 880.2%
30K· 18.64 mi
6:48/mi
2:02:09
↑ 181↓ 1480.2%
20M
6:49/mi
2:11:25
↑ 64↓ 500.2%
21M
7:11/mi
2:18:36
↑ 106↓ 241.6%
35K· 21.75 mi
6:29/mi
2:23:27
↑ 17↓ 861.7%
23M
6:47/mi
2:31:57
↑ 23↓ 630.6%
24M
6:35/mi
2:38:32
↓ 821.3%
40K· 24.85 mi
6:44/mi
2:44:17
↓ 200.3%
25.2M
7:15/mi
2:46:47
↑ 13↓ 160.2%
Finish· 26.22 mi
6:35/mi
2:53:30
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:25:00
Pace6:29 /mi
2nd Half
Distance13.11 mi
Time1:28:30
Pace6:45 /mi
📊Positive Split: 4.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:21:0620:226:3320:22
6:33
-
10K
6.21 mi10:41:0040:166:2919:54
6:24
-0:09
15K
9.32 mi11:00:591:00:156:2819:59
6:26
+0:02
20K
12.43 mi11:21:201:20:366:2920:21
6:33
+0:07
Half
13.11 mi11:25:441:25:006:294:24
6:27
-0:06
25K
15.53 mi11:41:461:41:026:3016:02
6:37
+0:10
30K
18.64 mi12:02:532:02:096:3321:07
6:48
+0:11
20M
20.00 mi12:12:092:11:256:349:16
6:49
+0:01
21M
21.00 mi12:19:202:18:366:367:11
7:11
+0:22
35K
21.75 mi12:24:112:23:276:364:51
6:29
-0:42
23M
23.00 mi12:32:412:31:576:368:30
6:47
+0:18
24M
24.00 mi12:39:162:38:326:366:35
6:35
-0:12
40K
24.85 mi12:45:012:44:176:375:45
6:44
+0:09
25.2M
25.20 mi12:47:312:46:476:372:30
7:15
+0:31
Finish
26.22 mi12:54:142:53:306:376:43
6:35
-0:40

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

6:24 /mi

Average Pace

6:37 /mi

Slowest Pace

7:15 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:43:49

94% of race

Time at Steady Pace

9:41

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:37 /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 mi10:21:0620:226:3320:22
6:33
#2576
10K
6.21 mi10:41:0040:166:2919:54
6:24
#2387
15K
9.32 mi11:00:591:00:156:2819:59
6:26
#2342
20K
12.43 mi11:21:201:20:366:2920:21
6:33
#2370
Half
13.11 mi11:25:441:25:006:294:24
6:27
#2383
25K
15.53 mi11:41:461:41:026:3016:02
6:37
#2429
30K
18.64 mi12:02:532:02:096:3321:07
6:48
#2489
20M
20.00 mi12:12:092:11:256:349:16
6:49
#2478
21M
21.00 mi12:19:202:18:366:367:11
7:11
#2485
35K
21.75 mi12:24:112:23:276:364:51
6:29
#2461
23M
23.00 mi12:32:412:31:576:368:30
6:47
#2422
24M
24.00 mi12:39:162:38:326:366:35
6:35
#2405
40K
24.85 mi12:45:012:44:176:375:45
6:44
#2379
25.2M
25.20 mi12:47:312:46:476:372:30
7:15
#2365
Finish
26.22 mi12:54:142:53:306:376:43
6:35
#2365
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM45-49Seg. OverallSeg. MalesSeg. M45-49
5K3.11 mi3.11 mi2576245524552274(Top 9%)2183(Top 14%)2183(Top 97%)
10K6.21 mi3.10 mi2387+1892279+1762279+1762266(Top 9%)2169(Top 14%)2169(Top 96%)
15K9.32 mi3.11 mi2342+452242+372242+372274(Top 9%)2183(Top 14%)2183(Top 97%)
20K12.43 mi3.11 mi2370-282270-282270-282561(Top 10%)2450(Top 16%)2450(Top 109%)
Half13.11 mi0.68 mi2383-132284-142284-142480(Top 9%)2379(Top 16%)2379(Top 106%)
25K15.53 mi2.42 mi2429-462328-442328-442771(Top 10%)2649(Top 17%)2649(Top 118%)
30K18.64 mi3.11 mi2489-602382-542382-542947(Top 11%)2789(Top 18%)2789(Top 124%)
20M20.00 mi1.36 mi2478+112373+92373+92911(Top 11%)2736(Top 18%)2736(Top 121%)
21M21.00 mi1.00 mi2485-72380-72380-72976(Top 11%)2787(Top 18%)2787(Top 124%)
35K21.75 mi0.75 mi2461+242357+232357+232325(Top 9%)2205(Top 15%)2205(Top 98%)
23M23.00 mi1.25 mi2422+392318+392318+392577(Top 10%)2418(Top 16%)2418(Top 107%)
24M24.00 mi1.00 mi2405+172301+172301+172457(Top 9%)2293(Top 15%)2293(Top 102%)
40K24.85 mi0.85 mi2379+262275+262275+262447(Top 9%)2267(Top 15%)2267(Top 101%)
25.2M25.20 mi0.35 mi2365+142262+132262+132676(Top 10%)2462(Top 16%)2462(Top 109%)
Finish26.22 mi1.02 mi23652261+12261+12923(Top 11%)2648(Top 17%)2648(Top 118%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 9%
×21story building
+97ft-345ft

Overall

2274

Males

2183

M45-49

2183

5K→10K

3.1 - 6.2 mi

Top 9%
×5story building
+79ft-138ft

Overall

2266

Males

2169

M45-49

2169

10K→15K

6.2 - 9.3 mi

Top 9%
×3story building
+67ft-78ft

Overall

2274

Males

2183

M45-49

2183

15K→20K

9.3 - 12.4 mi

Top 10%
×5story building
+106ft-86ft

Overall

2561

Males

2450

M45-49

2450

20K→Half

12.4 - 13.1 mi

Top 9%
×2story building
+19ft-37ft

Overall

2480

Males

2379

M45-49

2379

Half→25K

13.1 - 15.5 mi

Top 10%
×4story building
+66ft-88ft

Overall

2771

Males

2649

M45-49

2649

25K→30K

15.5 - 18.6 mi

Top 11%
×9story building
+181ft-148ft

Overall

2947

Males

2789

M45-49

2789

30K→20M

18.6 - 20.0 mi

Top 11%
×5story building
+64ft-50ft

Overall

2911

Males

2736

M45-49

2736

20M→21M

20.0 - 21.0 mi

Top 11%
×8story building
+106ft-24ft

Overall

2976

Males

2787

M45-49

2787

21M→35K

21.0 - 21.8 mi

Top 9%
×7story building
+17ft-86ft

Overall

2325

Males

2205

M45-49

2205

35K→23M

21.8 - 23.0 mi

Top 10%
×5story building
+23ft-63ft

Overall

2577

Males

2418

M45-49

2418

23M→24M

23.0 - 24.0 mi

Top 9%
×6story building
+12ft-82ft

Overall

2457

Males

2293

M45-49

2293

24M→40K

24.0 - 24.9 mi

Top 9%
×1story
+6ft-20ft

Overall

2447

Males

2267

M45-49

2267

40K→25.2M

24.9 - 25.2 mi

Top 10%
×1story
+13ft-16ft

Overall

2676

Males

2462

M45-49

2462

25.2M→Finish

25.2 - 26.2 mi

Top 11%
×2story building
+22ft-21ft

Overall

2923

Males

2648

M45-49

2648

Passing Analysis

Category:
Athletes Passed
768
Passed By
557
Net Change
+211
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#2576
5K → 10K25061+189#2576#2387
10K → 15K10459+45#2387#2342
15K → 20K5078-28#2342#2370
20K → Half720-13#2370#2383
Half → 25K3076-46#2383#2429
25K → 30K44104-60#2429#2489
30K → 20M3928+11#2489#2478
20M → 21M3542-7#2478#2485
21M → 35K3713+24#2485#2461
35K → 23M5213+39#2461#2422
23M → 24M3417+17#2422#2405
24M → 40K3812+26#2405#2379
40K → 25.2M217+14#2379#2365
25.2M → Finish27270#2365#2365
TOTALS768557+211
📊

Passing Visuals

Category:
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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