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BOSTON MARATHON 2023

Alfonso Cazares

Bib: 17927•M

NY

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 36%
Gender (Male)
#0 / 15176
Masters (Masters Men)
#0 / 9891
Top 39%
Division (M55-59)
#0 / 1422
Top 21%
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
7:10/mi
22:15
↑ 97↓ 3451.5%
10K· 6.21 mi
6:56/mi
43:48
↑ 79↓ 1380.4%
15K· 9.32 mi
7:03/mi
1:05:42
↑ 67↓ 78
20K· 12.43 mi
7:05/mi
1:27:41
↑ 106↓ 860.1%
Half· 13.11 mi
6:56/mi
1:32:25
↑ 19↓ 370.5%
25K· 15.53 mi
6:57/mi
1:49:17
↑ 66↓ 880.2%
30K· 18.64 mi
7:03/mi
2:11:12
↑ 181↓ 1480.2%
20M
7:45/mi
2:21:44
↑ 64↓ 500.2%
21M
8:41/mi
2:30:25
↑ 106↓ 241.6%
35K· 21.75 mi
8:00/mi
2:36:24
↑ 17↓ 861.7%
23M
9:52/mi
2:48:45
↑ 23↓ 630.6%
24M
10:58/mi
2:59:43
↓ 821.3%
40K· 24.85 mi
9:51/mi
3:08:08
↓ 200.3%
25.2M
10:06/mi
3:11:37
↑ 13↓ 160.2%
Finish· 26.22 mi
9:30/mi
3:21:18
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:32:25
Pace7:03 /mi
2nd Half
Distance13.11 mi
Time1:48:53
Pace8:18 /mi
📊Positive Split: 17.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:13:1022:157:1022:15
7:10
-
10K
6.21 mi11:34:4343:487:0321:33
6:56
-0:14
15K
9.32 mi11:56:371:05:427:0321:54
7:03
+0:07
20K
12.43 mi12:18:361:27:417:0321:59
7:05
+0:02
Half
13.11 mi12:23:201:32:257:034:44
6:56
-0:09
25K
15.53 mi12:40:121:49:177:0216:52
6:57
+0:01
30K
18.64 mi13:02:072:11:127:0221:55
7:03
+0:06
20M
20.00 mi13:12:392:21:447:0510:32
7:45
+0:42
21M
21.00 mi13:21:202:30:257:108:41
8:41
+0:56
35K
21.75 mi13:27:192:36:247:115:59
8:00
-0:41
23M
23.00 mi13:39:402:48:457:2012:21
9:52
+1:52
24M
24.00 mi13:50:382:59:437:2910:58
10:58
+1:06
40K
24.85 mi13:59:033:08:087:348:25
9:51
-1:07
25.2M
25.20 mi14:02:323:11:377:363:29
10:06
+0:15
Finish
26.22 mi14:12:133:21:187:419:41
9:30
-0:36

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

6:56 /mi

Average Pace

7:41 /mi

Slowest Pace

10:58 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:26:58

43% of race

Time at Steady Pace

1:00:45

30% of race

Time at Slower Pace

53:35

27% of race

Average Pace: 7:41 /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 mi11:13:1022:157:1022:15
7:10
#7267
10K
6.21 mi11:34:4343:487:0321:33
6:56
#6801
15K
9.32 mi11:56:371:05:427:0321:54
7:03
#6776
20K
12.43 mi12:18:361:27:417:0321:59
7:05
#6672
Half
13.11 mi12:23:201:32:257:034:44
6:56
#6641
25K
15.53 mi12:40:121:49:177:0216:52
6:57
#6418
30K
18.64 mi13:02:072:11:127:0221:55
7:03
#6050
20M
20.00 mi13:12:392:21:447:0510:32
7:45
#6157
21M
21.00 mi13:21:202:30:257:108:41
8:41
#6348
35K
21.75 mi13:27:192:36:247:115:59
8:00
#6497
23M
23.00 mi13:39:402:48:457:2012:21
9:52
#7262
24M
24.00 mi13:50:382:59:437:2910:58
10:58
#8320
40K
24.85 mi13:59:033:08:087:348:25
9:51
#8859
25.2M
25.20 mi14:02:323:11:377:363:29
10:06
#9011
Finish
26.22 mi14:12:133:21:187:419:41
9:30
#9532
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM55-59Seg. OverallSeg. MalesSeg. M55-59
5K3.11 mi3.11 mi7267647664766856(Top 26%)6135(Top 40%)6135(Top 431%)
10K6.21 mi3.10 mi6801+4666118+3586118+3586402(Top 24%)5782(Top 38%)5782(Top 407%)
15K9.32 mi3.11 mi6776+256087+316087+316856(Top 26%)6135(Top 40%)6135(Top 431%)
20K12.43 mi3.11 mi6672+1045992+955992+956428(Top 24%)5792(Top 38%)5792(Top 407%)
Half13.11 mi0.68 mi6641+315966+265966+266242(Top 23%)5685(Top 37%)5685(Top 400%)
25K15.53 mi2.42 mi6418+2235792+1745792+1745345(Top 20%)4927(Top 32%)4927(Top 346%)
30K18.64 mi3.11 mi6050+3685503+2895503+2894695(Top 18%)4336(Top 29%)4336(Top 305%)
20M20.00 mi1.36 mi6157-1075567-645567-648514(Top 32%)6906(Top 46%)6906(Top 486%)
21M21.00 mi1.00 mi6348-1915708-1415708-14111528(Top 43%)8347(Top 55%)8347(Top 587%)
35K21.75 mi0.75 mi6497-1495803-955803-9512057(Top 45%)8566(Top 56%)8566(Top 602%)
23M23.00 mi1.25 mi7262-7656330-5276330-52719585(Top 74%)11828(Top 78%)11828(Top 832%)
24M24.00 mi1.00 mi8320-10586988-6586988-65822977(Top 86%)13329(Top 88%)13329(Top 937%)
40K24.85 mi0.85 mi8859-5397284-2967284-29619499(Top 73%)11699(Top 77%)11699(Top 823%)
25.2M25.20 mi0.35 mi9011-1527378-947378-9417703(Top 66%)10862(Top 72%)10862(Top 764%)
Finish26.22 mi1.02 mi9532-5217640-2627640-26220106(Top 76%)12014(Top 79%)12014(Top 845%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 26%
×21story building
+97ft-345ft

Overall

6856

Males

6135

M55-59

6135

5K→10K

3.1 - 6.2 mi

Top 24%
×5story building
+79ft-138ft

Overall

6402

Males

5782

M55-59

5782

10K→15K

6.2 - 9.3 mi

Top 26%
×3story building
+67ft-78ft

Overall

6856

Males

6135

M55-59

6135

15K→20K

9.3 - 12.4 mi

Top 24%
×5story building
+106ft-86ft

Overall

6428

Males

5792

M55-59

5792

20K→Half

12.4 - 13.1 mi

Top 23%
×2story building
+19ft-37ft

Overall

6242

Males

5685

M55-59

5685

Half→25K

13.1 - 15.5 mi

Top 20%
×4story building
+66ft-88ft

Overall

5345

Males

4927

M55-59

4927

25K→30K

15.5 - 18.6 mi

Top 18%
×9story building
+181ft-148ft

Overall

4695

Males

4336

M55-59

4336

30K→20M

18.6 - 20.0 mi

Top 32%
×5story building
+64ft-50ft

Overall

8514

Males

6906

M55-59

6906

20M→21M

20.0 - 21.0 mi

Top 43%
×8story building
+106ft-24ft

Overall

11528

Males

8347

M55-59

8347

21M→35K

21.0 - 21.8 mi

Top 45%
×7story building
+17ft-86ft

Overall

12057

Males

8566

M55-59

8566

35K→23M

21.8 - 23.0 mi

Top 74%
×5story building
+23ft-63ft

Overall

19585

Males

11828

M55-59

11828

23M→24M

23.0 - 24.0 mi

Top 86%
×6story building
+12ft-82ft

Overall

22977

Males

13329

M55-59

13329

24M→40K

24.0 - 24.9 mi

Top 73%
×1story
+6ft-20ft

Overall

19499

Males

11699

M55-59

11699

40K→25.2M

24.9 - 25.2 mi

Top 66%
×1story
+13ft-16ft

Overall

17703

Males

10862

M55-59

10862

25.2M→Finish

25.2 - 26.2 mi

Top 76%
×2story building
+22ft-21ft

Overall

20106

Males

12014

M55-59

12014

Passing Analysis

Category:
Athletes Passed
1532
Passed By
3797
Net Change
-2265
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#7267
5K → 10K51852+466#7267#6801
10K → 15K133108+25#6801#6776
15K → 20K15955+104#6776#6672
20K → Half354+31#6672#6641
Half → 25K2296+223#6641#6418
25K → 30K3757+368#6418#6050
30K → 20M31138-107#6050#6157
20M → 21M16207-191#6157#6348
21M → 35K11160-149#6348#6497
35K → 23M10775-765#6497#7262
23M → 24M31061-1058#7262#8320
24M → 40K5544-539#8320#8859
40K → 25.2M4156-152#8859#9011
25.2M → Finish3524-521#9011#9532
TOTALS15323797-2265
📊

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