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BOSTON MARATHON 2023

Russell Greenwald

Bib: 2751•M

MA

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 8%
Gender (Male)
#0 / 15176
Top 13%
Masters (Masters Men)
#0 / 9891
Top 4%
Division (M45-49)
#0 / 2252
Top 4%
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
6:37/mi
20:34
↑ 97↓ 3451.5%
10K· 6.21 mi
6:28/mi
40:40
↑ 79↓ 1380.4%
15K· 9.32 mi
6:29/mi
1:00:48
↑ 67↓ 78
20K· 12.43 mi
6:35/mi
1:21:15
↑ 106↓ 860.1%
Half· 13.11 mi
6:25/mi
1:25:38
↑ 19↓ 370.5%
25K· 15.53 mi
6:29/mi
1:41:22
↑ 66↓ 880.2%
30K· 18.64 mi
6:40/mi
2:02:05
↑ 181↓ 1480.2%
20M
6:49/mi
2:11:21
↑ 64↓ 500.2%
21M
6:49/mi
2:18:10
↑ 106↓ 241.6%
35K· 21.75 mi
6:22/mi
2:22:56
↑ 17↓ 861.7%
23M
6:33/mi
2:31:08
↑ 23↓ 630.6%
24M
6:18/mi
2:37:26
↓ 821.3%
40K· 24.85 mi
6:29/mi
2:42:59
↓ 200.3%
25.2M
7:03/mi
2:45:25
↑ 13↓ 160.2%
Finish· 26.22 mi
6:23/mi
2:51:55
↑ 22↓ 21

The Course

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Half Splits

1st Half· via Half⚖️ Balanced
Distance13.11 mi
Time1:25:38
Pace6:32 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time1:26:17
Pace6:35 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:21:3720:346:3720:34
6:37
-
10K
6.21 mi10:41:4340:406:3320:06
6:28
-0:09
15K
9.32 mi11:01:511:00:486:3120:08
6:29
+0:01
20K
12.43 mi11:22:181:21:156:3220:27
6:35
+0:06
Half
13.11 mi11:26:411:25:386:324:23
6:25
-0:10
25K
15.53 mi11:42:251:41:226:3215:44
6:29
+0:04
30K
18.64 mi12:03:082:02:056:3320:43
6:40
+0:11
20M
20.00 mi12:12:242:11:216:349:16
6:49
+0:09
21M
21.00 mi12:19:132:18:106:356:49
6:49
0:00
35K
21.75 mi12:23:592:22:566:344:46
6:22
-0:27
23M
23.00 mi12:32:112:31:086:348:12
6:33
+0:11
24M
24.00 mi12:38:292:37:266:346:18
6:18
-0:15
40K
24.85 mi12:44:022:42:596:335:33
6:29
+0:11
25.2M
25.20 mi12:46:282:45:256:342:26
7:03
+0:34
Finish
26.22 mi12:52:582:51:556:346:30
6:23
-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

6:18 /mi

Average Pace

6:34 /mi

Slowest Pace

7:03 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:49:29

99% of race

Time at Steady Pace

2:26

1% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:33 /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 mi10:21:3720:346:3720:34
6:37
#3005
10K
6.21 mi10:41:4340:406:3320:06
6:28
#2762
15K
9.32 mi11:01:511:00:486:3120:08
6:29
#2661
20K
12.43 mi11:22:181:21:156:3220:27
6:35
#2655
Half
13.11 mi11:26:411:25:386:324:23
6:25
#2644
25K
15.53 mi11:42:251:41:226:3215:44
6:29
#2543
30K
18.64 mi12:03:082:02:056:3320:43
6:40
#2465
20M
20.00 mi12:12:242:11:216:349:16
6:49
#2462
21M
21.00 mi12:19:132:18:106:356:49
6:49
#2384
35K
21.75 mi12:23:592:22:566:344:46
6:22
#2345
23M
23.00 mi12:32:112:31:086:348:12
6:33
#2267
24M
24.00 mi12:38:292:37:266:346:18
6:18
#2207
40K
24.85 mi12:44:022:42:596:335:33
6:29
#2165
25.2M
25.20 mi12:46:282:45:256:342:26
7:03
#2150
Finish
26.22 mi12:52:582:51:556:346:30
6:23
#2095
Faster pace
Steady pace
Slower pace
Est.Checkpoint not recorded (estimated)
~Segment time uses estimated prior

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM45-49Seg. OverallSeg. MalesSeg. M45-49
5K3.11 mi3.11 mi3005284728472516(Top 9%)2412(Top 16%)2412(Top 107%)
10K6.21 mi3.10 mi2762+2432633+2142633+2142605(Top 10%)2491(Top 16%)2491(Top 111%)
15K9.32 mi3.11 mi2661+1012542+912542+912516(Top 9%)2412(Top 16%)2412(Top 107%)
20K12.43 mi3.11 mi2655+62536+62536+62722(Top 10%)2602(Top 17%)2602(Top 116%)
Half13.11 mi0.68 mi2644+112526+102526+102332(Top 9%)2237(Top 15%)2237(Top 99%)
25K15.53 mi2.42 mi2543+1012435+912435+912115(Top 8%)2028(Top 13%)2028(Top 90%)
30K18.64 mi3.11 mi2465+782358+772358+772250(Top 8%)2145(Top 14%)2145(Top 95%)
20M20.00 mi1.36 mi2462+32357+12357+12899(Top 11%)2724(Top 18%)2724(Top 121%)
21M21.00 mi1.00 mi2384+782285+722285+721485(Top 6%)1414(Top 9%)1414(Top 63%)
35K21.75 mi0.75 mi2345+392246+392246+391858(Top 7%)1764(Top 12%)1764(Top 78%)
23M23.00 mi1.25 mi2267+782171+752171+751615(Top 6%)1535(Top 10%)1535(Top 68%)
24M24.00 mi1.00 mi2207+602117+542117+541349(Top 5%)1277(Top 8%)1277(Top 57%)
40K24.85 mi0.85 mi2165+422077+402077+401504(Top 6%)1418(Top 9%)1418(Top 63%)
25.2M25.20 mi0.35 mi2150+152063+142063+141911(Top 7%)1794(Top 12%)1794(Top 80%)
Finish26.22 mi1.02 mi2095+552008+552008+551922(Top 7%)1793(Top 12%)1793(Top 80%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 9%
×21story building
+97ft-345ft

Overall

2516

Males

2412

M45-49

2412

5K→10K

3.1 - 6.2 mi

Top 10%
×5story building
+79ft-138ft

Overall

2605

Males

2491

M45-49

2491

10K→15K

6.2 - 9.3 mi

Top 9%
×3story building
+67ft-78ft

Overall

2516

Males

2412

M45-49

2412

15K→20K

9.3 - 12.4 mi

Top 10%
×5story building
+106ft-86ft

Overall

2722

Males

2602

M45-49

2602

20K→Half

12.4 - 13.1 mi

Top 9%
×2story building
+19ft-37ft

Overall

2332

Males

2237

M45-49

2237

Half→25K

13.1 - 15.5 mi

Top 8%
×4story building
+66ft-88ft

Overall

2115

Males

2028

M45-49

2028

25K→30K

15.5 - 18.6 mi

Top 8%
×9story building
+181ft-148ft

Overall

2250

Males

2145

M45-49

2145

30K→20M

18.6 - 20.0 mi

Top 11%
×5story building
+64ft-50ft

Overall

2899

Males

2724

M45-49

2724

20M→21M

20.0 - 21.0 mi

Top 6%
×8story building
+106ft-24ft

Overall

1485

Males

1414

M45-49

1414

21M→35K

21.0 - 21.8 mi

Top 7%
×7story building
+17ft-86ft

Overall

1858

Males

1764

M45-49

1764

35K→23M

21.8 - 23.0 mi

Top 6%
×5story building
+23ft-63ft

Overall

1615

Males

1535

M45-49

1535

23M→24M

23.0 - 24.0 mi

Top 5%
×6story building
+12ft-82ft

Overall

1349

Males

1277

M45-49

1277

24M→40K

24.0 - 24.9 mi

Top 6%
×1story
+6ft-20ft

Overall

1504

Males

1418

M45-49

1418

40K→25.2M

24.9 - 25.2 mi

Top 7%
×1story
+13ft-16ft

Overall

1911

Males

1794

M45-49

1794

25.2M→Finish

25.2 - 26.2 mi

Top 7%
×2story building
+22ft-21ft

Overall

1922

Males

1793

M45-49

1793

Passing Analysis

Category:
Athletes Passed
1208
Passed By
298
Net Change
+910
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#3005
5K → 10K30360+243#3005#2762
10K → 15K13938+101#2762#2661
15K → 20K7670+6#2661#2655
20K → Half187+11#2655#2644
Half → 25K11211+101#2644#2543
25K → 30K10931+78#2543#2465
30K → 20M3734+3#2465#2462
20M → 21M824+78#2462#2384
21M → 35K456+39#2384#2345
35K → 23M813+78#2345#2267
23M → 24M677+60#2267#2207
24M → 40K5210+42#2207#2165
40K → 25.2M227+15#2165#2150
25.2M → Finish6510+55#2150#2095
TOTALS1208298+910
📊

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