Boston Marathon logo
BOSTON MARATHON 2023

Victor Alvarez

Bib: 31512•M

FL

0:00
0:00
/ mi
Masters
Be the first to cheer!
Overall
#0 / 26622
Gender (Male)
#0 / 15176
Masters (Masters Men)
#0 / 9891
Division (M50-54)
#0 / 2052
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
8:59/mi
27:54
↑ 97↓ 3451.5%
10K· 6.21 mi
8:48/mi
55:13
↑ 79↓ 1380.4%
15K· 9.32 mi
8:46/mi
1:22:28
↑ 67↓ 78
20K· 12.43 mi
9:01/mi
1:50:28
↑ 106↓ 860.1%
Half· 13.11 mi
8:49/mi
1:56:29
↑ 19↓ 370.5%
25K· 15.53 mi
9:23/mi
2:19:15
↑ 66↓ 880.2%
30K· 18.64 mi
9:30/mi
2:48:47
↑ 181↓ 1480.2%
20M
9:22/mi
3:01:31
↑ 64↓ 500.2%
21M
10:04/mi
3:11:35
↑ 106↓ 241.6%
35K· 21.75 mi
8:48/mi
3:18:10
↑ 17↓ 861.7%
23M
9:12/mi
3:29:41
↑ 23↓ 630.6%
24M
9:00/mi
3:38:41
↓ 821.3%
40K· 24.85 mi
9:05/mi
3:46:27
↓ 200.3%
25.2M
9:31/mi
3:49:44
↑ 13↓ 160.2%
Finish· 26.22 mi
8:19/mi
3:58:12
↑ 22↓ 21

The Course

Is this your race?

Claim it — unlock a deeper AI report on this race, free

A personalized Race Performance Report that goes beyond this page — emailed to you, built from your real splits.

Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:56:29
Pace8:53 /mi
2nd Half
Distance13.11 mi
Time2:01:43
Pace9:17 /mi
📊Positive Split: 4.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:47:3627:548:5927:54
8:59
-
10K
6.21 mi12:14:5555:138:5327:19
8:48
-0:11
15K
9.32 mi12:42:101:22:288:5127:15
8:46
-0:02
20K
12.43 mi13:10:101:50:288:5328:00
9:01
+0:15
Half
13.11 mi13:16:111:56:298:536:01
8:49
-0:12
25K
15.53 mi13:38:572:19:158:5822:46
9:23
+0:34
30K
18.64 mi14:08:292:48:479:0329:32
9:30
+0:07
20M
20.00 mi14:21:133:01:319:0512:44
9:22
-0:08
21M
21.00 mi14:31:173:11:359:0710:04
10:04
+0:42
35K
21.75 mi14:37:523:18:109:076:35
8:48
-1:16
23M
23.00 mi14:49:233:29:419:0711:31
9:12
+0:24
24M
24.00 mi14:58:233:38:419:079:00
9:00
-0:12
40K
24.85 mi15:06:093:46:279:077:46
9:05
+0:05
25.2M
25.20 mi15:09:263:49:449:073:17
9:31
+0:26
Finish
26.22 mi15:17:543:58:129:058:28
8:19
-1:12

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

8:19 /mi

Average Pace

9:05 /mi

Slowest Pace

10:04 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:09:37

29% of race

Time at Steady Pace

1:30:12

38% of race

Time at Slower Pace

1:18:23

33% of race

Average Pace: 9:05 /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 mi11:47:3627:548:5927:54
8:59
#20353
10K
6.21 mi12:14:5555:138:5327:19
8:48
#20125
15K
9.32 mi12:42:101:22:288:5127:15
8:46
#19849
20K
12.43 mi13:10:101:50:288:5328:00
9:01
#19805
Half
13.11 mi13:16:111:56:298:536:01
8:49
#19787
25K
15.53 mi13:38:572:19:158:5822:46
9:23
#19955
30K
18.64 mi14:08:292:48:479:0329:32
9:30
#19847
20M
20.00 mi14:21:133:01:319:0512:44
9:22
#19705
21M
21.00 mi14:31:173:11:359:0710:04
10:04
#19607
35K
21.75 mi14:37:523:18:109:076:35
8:48
#19525
23M
23.00 mi14:49:233:29:419:0711:31
9:12
#19384
24M
24.00 mi14:58:233:38:419:079:00
9:00
#19288
40K
24.85 mi15:06:093:46:279:077:46
9:05
#19189
25.2M
25.20 mi15:09:263:49:449:073:17
9:31
#19128
Finish
26.22 mi15:17:543:58:129:058:28
8:19
#18987
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
5K3.11 mi3.11 mi20353123041230419350(Top 73%)12031(Top 79%)12031(Top 586%)
10K6.21 mi3.10 mi20125+22812268+3612268+3619882(Top 75%)12233(Top 81%)12233(Top 596%)
15K9.32 mi3.11 mi19849+27612178+9012178+9019350(Top 73%)12031(Top 79%)12031(Top 586%)
20K12.43 mi3.11 mi19805+4412180-212180-219754(Top 74%)12205(Top 80%)12205(Top 595%)
Half13.11 mi0.68 mi19787+1812178+212178+219557(Top 73%)12120(Top 80%)12120(Top 591%)
25K15.53 mi2.42 mi19955-16812246-6812246-6820473(Top 77%)12479(Top 82%)12479(Top 608%)
30K18.64 mi3.11 mi19847+10812184+6212184+6219454(Top 73%)11987(Top 79%)11987(Top 584%)
20M20.00 mi1.36 mi19705+14212124+6012124+6018318(Top 69%)11385(Top 75%)11385(Top 555%)
21M21.00 mi1.00 mi19607+9812067+5712067+5718254(Top 69%)11334(Top 75%)11334(Top 552%)
35K21.75 mi0.75 mi19525+8212026+4112026+4116926(Top 64%)10675(Top 70%)10675(Top 520%)
23M23.00 mi1.25 mi19384+14111966+6011966+6017041(Top 64%)10715(Top 71%)10715(Top 522%)
24M24.00 mi1.00 mi19288+9611913+5311913+5317232(Top 65%)10737(Top 71%)10737(Top 523%)
40K24.85 mi0.85 mi19189+9911861+5211861+5216564(Top 62%)10389(Top 68%)10389(Top 506%)
25.2M25.20 mi0.35 mi19128+6111832+2911832+2915269(Top 57%)9810(Top 65%)9810(Top 478%)
Finish26.22 mi1.02 mi18987+14111763+6911763+6914156(Top 53%)9322(Top 61%)9322(Top 454%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 73%
×21story building
+97ft-345ft

Overall

19350

Males

12031

M50-54

12031

5K→10K

3.1 - 6.2 mi

Top 75%
×5story building
+79ft-138ft

Overall

19882

Males

12233

M50-54

12233

10K→15K

6.2 - 9.3 mi

Top 73%
×3story building
+67ft-78ft

Overall

19350

Males

12031

M50-54

12031

15K→20K

9.3 - 12.4 mi

Top 74%
×5story building
+106ft-86ft

Overall

19754

Males

12205

M50-54

12205

20K→Half

12.4 - 13.1 mi

Top 73%
×2story building
+19ft-37ft

Overall

19557

Males

12120

M50-54

12120

Half→25K

13.1 - 15.5 mi

Top 77%
×4story building
+66ft-88ft

Overall

20473

Males

12479

M50-54

12479

25K→30K

15.5 - 18.6 mi

Top 73%
×9story building
+181ft-148ft

Overall

19454

Males

11987

M50-54

11987

30K→20M

18.6 - 20.0 mi

Top 69%
×5story building
+64ft-50ft

Overall

18318

Males

11385

M50-54

11385

20M→21M

20.0 - 21.0 mi

Top 69%
×8story building
+106ft-24ft

Overall

18254

Males

11334

M50-54

11334

21M→35K

21.0 - 21.8 mi

Top 64%
×7story building
+17ft-86ft

Overall

16926

Males

10675

M50-54

10675

35K→23M

21.8 - 23.0 mi

Top 64%
×5story building
+23ft-63ft

Overall

17041

Males

10715

M50-54

10715

23M→24M

23.0 - 24.0 mi

Top 65%
×6story building
+12ft-82ft

Overall

17232

Males

10737

M50-54

10737

24M→40K

24.0 - 24.9 mi

Top 62%
×1story
+6ft-20ft

Overall

16564

Males

10389

M50-54

10389

40K→25.2M

24.9 - 25.2 mi

Top 57%
×1story
+13ft-16ft

Overall

15269

Males

9810

M50-54

9810

25.2M→Finish

25.2 - 26.2 mi

Top 53%
×2story building
+22ft-21ft

Overall

14156

Males

9322

M50-54

9322

Passing Analysis

Category:
Athletes Passed
2296
Passed By
930
Net Change
+1366
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#20353
5K → 10K445217+228#20353#20125
10K → 15K36084+276#20125#19849
15K → 20K195151+44#19849#19805
20K → Half3921+18#19805#19787
Half → 25K71239-168#19787#19955
25K → 30K220112+108#19955#19847
30K → 20M15513+142#19847#19705
20M → 21M13436+98#19705#19607
21M → 35K919+82#19607#19525
35K → 23M15817+141#19525#19384
23M → 24M11014+96#19384#19288
24M → 40K10910+99#19288#19189
40K → 25.2M632+61#19189#19128
25.2M → Finish1465+141#19128#18987
TOTALS2296930+1366
📊

Passing Visuals

Category:
Loading...

🔄Passing Circle

Loading...

🌊Position Flow

Loading...

🏃Race Lanes

Loading...

Upload your GPX file

Supports Garmin, Apple Watch, Polar, Suunto, COROS, Strava, and other apps

.gpx files up to 10MB

Export Track Data

Download your race performance as a GPX or TCX file to import into Strava, Garmin Connect, or other fitness apps.

Questions or issues regarding timing data?

If you notice any discrepancies in your timing data or have questions about your results, our support team can help.

Contact Race Support

Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing