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BOSTON MARATHON 2023

Alejandro Lopez

Bib: 12531•M

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 31%
Gender (Male)
#0 / 15176
Top 45%
Masters (Masters Men)
#0 / 9891
Top 32%
Division (M45-49)
#0 / 2252
Top 44%
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
7:16/mi
22:35
↑ 97↓ 3451.5%
10K· 6.21 mi
7:15/mi
45:06
↑ 79↓ 1380.4%
15K· 9.32 mi
7:19/mi
1:07:49
↑ 67↓ 78
20K· 12.43 mi
7:19/mi
1:30:33
↑ 106↓ 860.1%
Half· 13.11 mi
7:14/mi
1:35:29
↑ 19↓ 370.5%
25K· 15.53 mi
7:17/mi
1:53:09
↑ 66↓ 880.2%
30K· 18.64 mi
7:34/mi
2:16:39
↑ 181↓ 1480.2%
20M
7:38/mi
2:27:02
↑ 64↓ 500.2%
21M
8:43/mi
2:35:45
↑ 106↓ 241.6%
35K· 21.75 mi
7:44/mi
2:41:32
↑ 17↓ 861.7%
23M
7:44/mi
2:51:13
↑ 23↓ 630.6%
24M
7:35/mi
2:58:48
↓ 821.3%
40K· 24.85 mi
7:53/mi
3:05:32
↓ 200.3%
25.2M
8:25/mi
3:08:26
↑ 13↓ 160.2%
Finish· 26.22 mi
7:50/mi
3:16:25
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:35:29
Pace7:17 /mi
2nd Half
Distance13.11 mi
Time1:40:56
Pace7:42 /mi
📊Positive Split: 5.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:50:2322:357:1622:35
7:16
-
10K
6.21 mi11:12:5445:067:1522:31
7:15
-0:01
15K
9.32 mi11:35:371:07:497:1722:43
7:19
+0:04
20K
12.43 mi11:58:211:30:337:1722:44
7:19
0:00
Half
13.11 mi12:03:171:35:297:174:56
7:14
-0:05
25K
15.53 mi12:20:571:53:097:1717:40
7:17
+0:03
30K
18.64 mi12:44:272:16:397:2023:30
7:34
+0:17
20M
20.00 mi12:54:502:27:027:2110:23
7:38
+0:04
21M
21.00 mi13:03:332:35:457:258:43
8:43
+1:05
35K
21.75 mi13:09:202:41:327:265:47
7:44
-0:59
23M
23.00 mi13:19:012:51:137:279:41
7:44
0:00
24M
24.00 mi13:26:362:58:487:277:35
7:35
-0:09
40K
24.85 mi13:33:203:05:327:286:44
7:53
+0:18
25.2M
25.20 mi13:36:143:08:267:292:54
8:25
+0:32
Finish
26.22 mi13:44:133:16:257:307:59
7:50
-0:35

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

7:14 /mi

Average Pace

7:30 /mi

Slowest Pace

8:43 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:53:09

58% of race

Time at Steady Pace

56:56

29% of race

Time at Slower Pace

26:20

13% of race

Average Pace: 7:29 /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 mi10:50:2322:357:1622:35
7:16
#7922
10K
6.21 mi11:12:5445:067:1522:31
7:15
#8172
15K
9.32 mi11:35:371:07:497:1722:43
7:19
#8270
20K
12.43 mi11:58:211:30:337:1722:44
7:19
#8149
Half
13.11 mi12:03:171:35:297:174:56
7:14
#8146
25K
15.53 mi12:20:571:53:097:1717:40
7:17
#7952
30K
18.64 mi12:44:272:16:397:2023:30
7:34
#7861
20M
20.00 mi12:54:502:27:027:2110:23
7:38
#7811
21M
21.00 mi13:03:332:35:457:258:43
8:43
#8003
35K
21.75 mi13:09:202:41:327:265:47
7:44
#8075
23M
23.00 mi13:19:012:51:137:279:41
7:44
#8039
24M
24.00 mi13:26:362:58:487:277:35
7:35
#8018
40K
24.85 mi13:33:203:05:327:286:44
7:53
#8031
25.2M
25.20 mi13:36:143:08:267:292:54
8:25
#8038
Finish
26.22 mi13:44:133:16:257:307:59
7:50
#8140
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM45-49Seg. OverallSeg. MalesSeg. M45-49
5K3.11 mi3.11 mi7922692069208652(Top 32%)7340(Top 48%)7340(Top 326%)
10K6.21 mi3.10 mi8172-2507069-1497069-1498457(Top 32%)7232(Top 48%)7232(Top 321%)
15K9.32 mi3.11 mi8270-987130-617130-618652(Top 32%)7340(Top 48%)7340(Top 326%)
20K12.43 mi3.11 mi8149+1217041+897041+897910(Top 30%)6828(Top 45%)6828(Top 303%)
Half13.11 mi0.68 mi8146+37035+67035+68068(Top 30%)6940(Top 46%)6940(Top 308%)
25K15.53 mi2.42 mi7952+1946885+1506885+1507210(Top 27%)6298(Top 41%)6298(Top 280%)
30K18.64 mi3.11 mi7861+916789+966789+967666(Top 29%)6490(Top 43%)6490(Top 288%)
20M20.00 mi1.36 mi7811+506741+486741+487754(Top 29%)6439(Top 42%)6439(Top 286%)
21M21.00 mi1.00 mi8003-1926845-1046845-10411724(Top 44%)8440(Top 56%)8440(Top 375%)
35K21.75 mi0.75 mi8075-726876-316876-3110105(Top 38%)7665(Top 51%)7665(Top 340%)
23M23.00 mi1.25 mi8039+366830+466830+467945(Top 30%)6380(Top 42%)6380(Top 283%)
24M24.00 mi1.00 mi8018+216798+326798+328258(Top 31%)6463(Top 43%)6463(Top 287%)
40K24.85 mi0.85 mi8031-136785+136785+139139(Top 34%)6885(Top 45%)6885(Top 306%)
25.2M25.20 mi0.35 mi8038-76782+36782+38897(Top 33%)6670(Top 44%)6670(Top 296%)
Finish26.22 mi1.02 mi8140-1026828-466828-4610899(Top 41%)7736(Top 51%)7736(Top 344%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 32%
×21story building
+97ft-345ft

Overall

8652

Males

7340

M45-49

7340

5K→10K

3.1 - 6.2 mi

Top 32%
×5story building
+79ft-138ft

Overall

8457

Males

7232

M45-49

7232

10K→15K

6.2 - 9.3 mi

Top 32%
×3story building
+67ft-78ft

Overall

8652

Males

7340

M45-49

7340

15K→20K

9.3 - 12.4 mi

Top 30%
×5story building
+106ft-86ft

Overall

7910

Males

6828

M45-49

6828

20K→Half

12.4 - 13.1 mi

Top 30%
×2story building
+19ft-37ft

Overall

8068

Males

6940

M45-49

6940

Half→25K

13.1 - 15.5 mi

Top 27%
×4story building
+66ft-88ft

Overall

7210

Males

6298

M45-49

6298

25K→30K

15.5 - 18.6 mi

Top 29%
×9story building
+181ft-148ft

Overall

7666

Males

6490

M45-49

6490

30K→20M

18.6 - 20.0 mi

Top 29%
×5story building
+64ft-50ft

Overall

7754

Males

6439

M45-49

6439

20M→21M

20.0 - 21.0 mi

Top 44%
×8story building
+106ft-24ft

Overall

11724

Males

8440

M45-49

8440

21M→35K

21.0 - 21.8 mi

Top 38%
×7story building
+17ft-86ft

Overall

10105

Males

7665

M45-49

7665

35K→23M

21.8 - 23.0 mi

Top 30%
×5story building
+23ft-63ft

Overall

7945

Males

6380

M45-49

6380

23M→24M

23.0 - 24.0 mi

Top 31%
×6story building
+12ft-82ft

Overall

8258

Males

6463

M45-49

6463

24M→40K

24.0 - 24.9 mi

Top 34%
×1story
+6ft-20ft

Overall

9139

Males

6885

M45-49

6885

40K→25.2M

24.9 - 25.2 mi

Top 33%
×1story
+13ft-16ft

Overall

8897

Males

6670

M45-49

6670

25.2M→Finish

25.2 - 26.2 mi

Top 41%
×2story building
+22ft-21ft

Overall

10899

Males

7736

M45-49

7736

Passing Analysis

Category:
Athletes Passed
1259
Passed By
1477
Net Change
-218
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#7922
5K → 10K124374-250#7922#8172
10K → 15K110208-98#8172#8270
15K → 20K18160+121#8270#8149
20K → Half2421+3#8149#8146
Half → 25K21016+194#8146#7952
25K → 30K18089+91#7952#7861
30K → 20M9444+50#7861#7811
20M → 21M23215-192#7811#8003
21M → 35K2597-72#8003#8075
35K → 23M10367+36#8075#8039
23M → 24M7352+21#8039#8018
24M → 40K5770-13#8018#8031
40K → 25.2M2128-7#8031#8038
25.2M → Finish34136-102#8038#8140
TOTALS12591477-218
📊

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