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BOSTON MARATHON 2023

Alvin Park

Bib: 18780•M

NJ

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Male)
#0 / 15176
Masters (Masters Men)
#0 / 9891
Division (M60-64)
#0 / 1110
Top 33%
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
8:25/mi
26:10
↑ 97↓ 3451.5%
10K· 6.21 mi
7:57/mi
50:51
↑ 79↓ 1380.4%
15K· 9.32 mi
8:02/mi
1:15:48
↑ 67↓ 78
20K· 12.43 mi
8:21/mi
1:41:45
↑ 106↓ 860.1%
Half· 13.11 mi
8:14/mi
1:47:22
↑ 19↓ 370.5%
25K· 15.53 mi
8:40/mi
2:08:23
↑ 66↓ 880.2%
30K· 18.64 mi
8:40/mi
2:35:19
↑ 181↓ 1480.2%
20M
8:48/mi
2:47:17
↑ 64↓ 500.2%
21M
9:44/mi
2:57:01
↑ 106↓ 241.6%
35K· 21.75 mi
8:07/mi
3:03:05
↑ 17↓ 861.7%
23M
8:45/mi
3:14:02
↑ 23↓ 630.6%
24M
8:27/mi
3:22:29
↓ 821.3%
40K· 24.85 mi
8:28/mi
3:29:43
↓ 200.3%
25.2M
9:23/mi
3:32:57
↑ 13↓ 160.2%
Finish· 26.22 mi
8:29/mi
3:41:36
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:47:22
Pace8:11 /mi
2nd Half
Distance13.11 mi
Time1:54:14
Pace8:43 /mi
📊Positive Split: 6.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:17:2226:108:2526:10
8:25
-
10K
6.21 mi11:42:0350:518:1124:41
7:57
-0:28
15K
9.32 mi12:07:001:15:488:0824:57
8:02
+0:05
20K
12.43 mi12:32:571:41:458:1125:57
8:21
+0:19
Half
13.11 mi12:38:341:47:228:115:37
8:14
-0:07
25K
15.53 mi12:59:352:08:238:1621:01
8:40
+0:26
30K
18.64 mi13:26:312:35:198:2026:56
8:40
0:00
20M
20.00 mi13:38:292:47:178:2211:58
8:48
+0:08
21M
21.00 mi13:48:132:57:018:269:44
9:44
+0:56
35K
21.75 mi13:54:173:03:058:256:04
8:07
-1:37
23M
23.00 mi14:05:143:14:028:2610:57
8:45
+0:38
24M
24.00 mi14:13:413:22:298:268:27
8:27
-0:18
40K
24.85 mi14:20:553:29:438:267:14
8:28
+0:01
25.2M
25.20 mi14:24:093:32:578:273:14
9:23
+0:55
Finish
26.22 mi14:32:483:41:368:278:39
8:29
-0:54

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

7:57 /mi

Average Pace

8:27 /mi

Slowest Pace

9:44 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:01:19

28% of race

Time at Steady Pace

2:04:24

56% of race

Time at Slower Pace

35:53

16% of race

Average Pace: 8:27 /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 mi11:17:2226:108:2526:10
8:25
#17032
10K
6.21 mi11:42:0350:518:1124:41
7:57
#15701
15K
9.32 mi12:07:001:15:488:0824:57
8:02
#15357
20K
12.43 mi12:32:571:41:458:1125:57
8:21
#15488
Half
13.11 mi12:38:341:47:228:115:37
8:14
#15516
25K
15.53 mi12:59:352:08:238:1621:01
8:40
#15781
30K
18.64 mi13:26:312:35:198:2026:56
8:40
#15691
20M
20.00 mi13:38:292:47:178:2211:58
8:48
#15637
21M
21.00 mi13:48:132:57:018:269:44
9:44
#15713
35K
21.75 mi13:54:173:03:058:256:04
8:07
#15612
23M
23.00 mi14:05:143:14:028:2610:57
8:45
#15538
24M
24.00 mi14:13:413:22:298:268:27
8:27
#15467
40K
24.85 mi14:20:553:29:438:267:14
8:28
#15376
25.2M
25.20 mi14:24:093:32:578:273:14
9:23
#15347
Finish
26.22 mi14:32:483:41:368:278:39
8:29
#15335
Faster pace
Steady pace
Slower pace
Est.Checkpoint not recorded (estimated)
~Segment time uses estimated prior

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM60-64Seg. OverallSeg. MalesSeg. M60-64
5K3.11 mi3.11 mi17032110611106114632(Top 55%)10151(Top 67%)10151(Top 915%)
10K6.21 mi3.10 mi15701+133110588+47310588+47314358(Top 54%)10065(Top 66%)10065(Top 907%)
15K9.32 mi3.11 mi15357+34410449+13910449+13914632(Top 55%)10151(Top 67%)10151(Top 915%)
20K12.43 mi3.11 mi15488-13110483-3410483-3415939(Top 60%)10607(Top 70%)10607(Top 956%)
Half13.11 mi0.68 mi15516-2810492-910492-915973(Top 60%)10673(Top 70%)10673(Top 962%)
25K15.53 mi2.42 mi15781-26510561-6910561-6917226(Top 65%)11073(Top 73%)11073(Top 998%)
30K18.64 mi3.11 mi15691+9010488+7310488+7315305(Top 57%)10167(Top 67%)10167(Top 916%)
20M20.00 mi1.36 mi15637+5410442+4610442+4615448(Top 58%)10189(Top 67%)10189(Top 918%)
21M21.00 mi1.00 mi15713-7610441+110441+116961(Top 64%)10773(Top 71%)10773(Top 971%)
35K21.75 mi0.75 mi15612+10110386+5510386+5512838(Top 48%)8925(Top 59%)8925(Top 804%)
23M23.00 mi1.25 mi15538+7410327+5910327+5914656(Top 55%)9658(Top 64%)9658(Top 870%)
24M24.00 mi1.00 mi15467+7110291+3610291+3614170(Top 53%)9381(Top 62%)9381(Top 845%)
40K24.85 mi0.85 mi15376+9110246+4510246+4513070(Top 49%)8819(Top 58%)8819(Top 795%)
25.2M25.20 mi0.35 mi15347+2910223+2310223+2314520(Top 55%)9476(Top 62%)9476(Top 854%)
Finish26.22 mi1.02 mi15335+1210209+1410209+1415330(Top 58%)9871(Top 65%)9871(Top 889%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 55%
×21story building
+97ft-345ft

Overall

14632

Males

10151

M60-64

10151

5K→10K

3.1 - 6.2 mi

Top 54%
×5story building
+79ft-138ft

Overall

14358

Males

10065

M60-64

10065

10K→15K

6.2 - 9.3 mi

Top 55%
×3story building
+67ft-78ft

Overall

14632

Males

10151

M60-64

10151

15K→20K

9.3 - 12.4 mi

Top 60%
×5story building
+106ft-86ft

Overall

15939

Males

10607

M60-64

10607

20K→Half

12.4 - 13.1 mi

Top 60%
×2story building
+19ft-37ft

Overall

15973

Males

10673

M60-64

10673

Half→25K

13.1 - 15.5 mi

Top 65%
×4story building
+66ft-88ft

Overall

17226

Males

11073

M60-64

11073

25K→30K

15.5 - 18.6 mi

Top 57%
×9story building
+181ft-148ft

Overall

15305

Males

10167

M60-64

10167

30K→20M

18.6 - 20.0 mi

Top 58%
×5story building
+64ft-50ft

Overall

15448

Males

10189

M60-64

10189

20M→21M

20.0 - 21.0 mi

Top 64%
×8story building
+106ft-24ft

Overall

16961

Males

10773

M60-64

10773

21M→35K

21.0 - 21.8 mi

Top 48%
×7story building
+17ft-86ft

Overall

12838

Males

8925

M60-64

8925

35K→23M

21.8 - 23.0 mi

Top 55%
×5story building
+23ft-63ft

Overall

14656

Males

9658

M60-64

9658

23M→24M

23.0 - 24.0 mi

Top 53%
×6story building
+12ft-82ft

Overall

14170

Males

9381

M60-64

9381

24M→40K

24.0 - 24.9 mi

Top 49%
×1story
+6ft-20ft

Overall

13070

Males

8819

M60-64

8819

40K→25.2M

24.9 - 25.2 mi

Top 55%
×1story
+13ft-16ft

Overall

14520

Males

9476

M60-64

9476

25.2M→Finish

25.2 - 26.2 mi

Top 58%
×2story building
+22ft-21ft

Overall

15330

Males

9871

M60-64

9871

Passing Analysis

Category:
Athletes Passed
2945
Passed By
1248
Net Change
+1697
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#17032
5K → 10K137544+1331#17032#15701
10K → 15K40460+344#15701#15357
15K → 20K126257-131#15357#15488
20K → Half1543-28#15488#15516
Half → 25K77342-265#15516#15781
25K → 30K219129+90#15781#15691
30K → 20M11359+54#15691#15637
20M → 21M63139-76#15637#15713
21M → 35K1054+101#15713#15612
35K → 23M12450+74#15612#15538
23M → 24M9322+71#15538#15467
24M → 40K11221+91#15467#15376
40K → 25.2M4213+29#15376#15347
25.2M → Finish7765+12#15347#15335
TOTALS29451248+1697
📊

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