Boston Marathon logo
BOSTON MARATHON 2023

Samuel Sanchez

Bib: 29480•M

MA

0:00
0:00
/ mi
Be the first to cheer!
Overall
#0 / 26622
Top 18%
Gender (Male)
#0 / 15176
Top 29%
Division (M18-39)
#0 / 5285
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
22:06
Rank: #6940
Start → 5K
22:06 | 7:07/mi
10K· 6.21 mi
42:41
Rank: #5578 (+1362)
5K → 10K
20:35 | 6:38/mi
15K· 9.32 mi
1:03:30
Rank: #5112 (+466)
10K → 15K
20:49 | 6:42/mi
20K· 12.43 mi
1:24:44
Rank: #5006 (+106)
15K → 20K
21:14 | 6:50/mi
Half· 13.11 mi
1:29:22
Rank: #5011 (-5)
20K → Half
4:38 | 6:47/mi
25K· 15.53 mi
1:45:53
Rank: #4853 (+158)
Half → 25K
16:31 | 6:49/mi
30K· 18.64 mi
2:08:19
Rank: #5036 (-183)
25K → 30K
22:26 | 7:13/mi
20M
2:18:05
Rank: #5013 (+23)
30K → 20M
9:46 | 7:11/mi
21M
2:25:51
Rank: #5061 (-48)
20M → 21M
7:46 | 7:46/mi
35K· 21.75 mi
2:31:08
Rank: #5067 (-6)
21M → 35K
5:17 | 7:04/mi
23M
2:40:10
Rank: #5007 (+60)
35K → 23M
9:02 | 7:13/mi
24M
2:47:17
Rank: #4983 (+24)
23M → 24M
7:07 | 7:07/mi
40K· 24.85 mi
2:53:20
Rank: #4918 (+65)
24M → 40K
6:03 | 7:05/mi
25.2M
2:55:57
Rank: #4893 (+25)
40K → 25.2M
2:37 | 7:35/mi
Finish· 26.22 mi
3:02:36
Rank: #4738 (+155)
25.2M → Finish
6:39 | 6:32/mi

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
Time1:29:22
Pace6:49 /mi
2nd Half
Distance13.11 mi
Time1:33:14
Pace7:07 /mi
📊Positive Split: 4.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:40:3022:067:0722:06
7:07
-
10K
6.21 mi12:01:0542:416:5220:35
6:38
-0:29
15K
9.32 mi12:21:541:03:306:4920:49
6:42
+0:04
20K
12.43 mi12:43:081:24:446:4921:14
6:50
+0:08
Half
13.11 mi12:47:461:29:226:494:38
6:47
-0:03
25K
15.53 mi13:04:171:45:536:4916:31
6:49
+0:02
30K
18.64 mi13:26:432:08:196:5322:26
7:13
+0:24
20M
20.00 mi13:36:292:18:056:549:46
7:11
-0:02
21M
21.00 mi13:44:152:25:516:577:46
7:46
+0:35
35K
21.75 mi13:49:322:31:086:575:17
7:04
-0:42
23M
23.00 mi13:58:342:40:106:589:02
7:13
+0:09
24M
24.00 mi14:05:412:47:176:587:07
7:07
-0:06
40K
24.85 mi14:11:442:53:206:586:03
7:05
-0:02
25.2M
25.20 mi14:14:212:55:576:592:37
7:35
+0:30
Finish
26.22 mi14:21:003:02:366:586:39
6:32
-1:03

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

6:32 /mi

Average Pace

6:58 /mi

Slowest Pace

7:46 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:20:45

77% of race

Time at Steady Pace

34:05

19% of race

Time at Slower Pace

7:46

4% of race

Average Pace: 6:58 /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 mi11:40:3022:067:0722:06
7:07
#6940
10K
6.21 mi12:01:0542:416:5220:35
6:38
#5578
15K
9.32 mi12:21:541:03:306:4920:49
6:42
#5112
20K
12.43 mi12:43:081:24:446:4921:14
6:50
#5006
Half
13.11 mi12:47:461:29:226:494:38
6:47
#5011
25K
15.53 mi13:04:171:45:536:4916:31
6:49
#4853
30K
18.64 mi13:26:432:08:196:5322:26
7:13
#5036
20M
20.00 mi13:36:292:18:056:549:46
7:11
#5013
21M
21.00 mi13:44:152:25:516:577:46
7:46
#5061
35K
21.75 mi13:49:322:31:086:575:17
7:04
#5067
23M
23.00 mi13:58:342:40:106:589:02
7:13
#5007
24M
24.00 mi14:05:412:47:176:587:07
7:07
#4983
40K
24.85 mi14:11:442:53:206:586:03
7:05
#4918
25.2M
25.20 mi14:14:212:55:576:592:37
7:35
#4893
Finish
26.22 mi14:21:003:02:366:586:39
6:32
#4738
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi6940622162214142(Top 16%)3888(Top 26%)3888(Top 74%)
10K6.21 mi3.10 mi5578+13625139+10825139+10823688(Top 14%)3484(Top 23%)3484(Top 66%)
15K9.32 mi3.11 mi5112+4664741+3984741+3984142(Top 16%)3888(Top 26%)3888(Top 74%)
20K12.43 mi3.11 mi5006+1064654+874654+874765(Top 18%)4427(Top 29%)4427(Top 84%)
Half13.11 mi0.68 mi5011-54658-44658-45163(Top 19%)4773(Top 31%)4773(Top 90%)
25K15.53 mi2.42 mi4853+1584514+1444514+1444265(Top 16%)3990(Top 26%)3990(Top 75%)
30K18.64 mi3.11 mi5036-1834671-1574671-1575591(Top 21%)5066(Top 33%)5066(Top 96%)
20M20.00 mi1.36 mi5013+234647+244647+245034(Top 19%)4567(Top 30%)4567(Top 86%)
21M21.00 mi1.00 mi5061-484681-344681-345964(Top 22%)5162(Top 34%)5162(Top 98%)
35K21.75 mi0.75 mi5067-64678+34678+35638(Top 21%)4969(Top 33%)4969(Top 94%)
23M23.00 mi1.25 mi5007+604618+604618+604865(Top 18%)4364(Top 29%)4364(Top 83%)
24M24.00 mi1.00 mi4983+244590+284590+285261(Top 20%)4606(Top 30%)4606(Top 87%)
40K24.85 mi0.85 mi4918+654531+594531+594240(Top 16%)3775(Top 25%)3775(Top 71%)
25.2M25.20 mi0.35 mi4893+254509+224509+224310(Top 16%)3780(Top 25%)3780(Top 72%)
Finish26.22 mi1.02 mi4738+1554375+1344375+1342633(Top 10%)2419(Top 16%)2419(Top 46%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 16%
×21stories
+97ft-345ft

Overall

4142

Males

3888

M18-39

3888

5K→10K

3.1 - 6.2 mi

Top 14%
×5stories
+79ft-138ft

Overall

3688

Males

3484

M18-39

3484

10K→15K

6.2 - 9.3 mi

Top 16%
×3stories
+67ft-78ft

Overall

4142

Males

3888

M18-39

3888

15K→20K

9.3 - 12.4 mi

Top 18%
×5stories
+106ft-86ft

Overall

4765

Males

4427

M18-39

4427

20K→Half

12.4 - 13.1 mi

Top 19%
×2stories
+19ft-37ft

Overall

5163

Males

4773

M18-39

4773

Half→25K

13.1 - 15.5 mi

Top 16%
×4stories
+66ft-88ft

Overall

4265

Males

3990

M18-39

3990

25K→30K

15.5 - 18.6 mi

Top 21%
×9stories
+181ft-148ft

Overall

5591

Males

5066

M18-39

5066

30K→20M

18.6 - 20.0 mi

Top 19%
×5stories
+64ft-50ft

Overall

5034

Males

4567

M18-39

4567

20M→21M

20.0 - 21.0 mi

Top 22%
×8stories
+106ft-24ft

Overall

5964

Males

5162

M18-39

5162

21M→35K

21.0 - 21.8 mi

Top 21%
×7stories
+17ft-86ft

Overall

5638

Males

4969

M18-39

4969

35K→23M

21.8 - 23.0 mi

Top 18%
×5stories
+23ft-63ft

Overall

4865

Males

4364

M18-39

4364

23M→24M

23.0 - 24.0 mi

Top 20%
×6stories
+12ft-82ft

Overall

5261

Males

4606

M18-39

4606

24M→40K

24.0 - 24.9 mi

Top 16%
×1story
+6ft-20ft

Overall

4240

Males

3775

M18-39

3775

40K→25.2M

24.9 - 25.2 mi

Top 16%
×1story
+13ft-16ft

Overall

4310

Males

3780

M18-39

3780

25.2M→Finish

25.2 - 26.2 mi

Top 10%
×2stories
+22ft-21ft

Overall

2633

Males

2419

M18-39

2419

Passing Analysis

Category:
Athletes Passed
2865
Passed By
663
Net Change
+2202
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#6940
5K → 10K13642+1362#6940#5578
10K → 15K4715+466#5578#5112
15K → 20K16155+106#5112#5006
20K → Half1924-5#5006#5011
Half → 25K18931+158#5011#4853
25K → 30K80263-183#4853#5036
30K → 20M8158+23#5036#5013
20M → 21M4593-48#5013#5061
21M → 35K3339-6#5061#5067
35K → 23M9838+60#5067#5007
23M → 24M5632+24#5007#4983
24M → 40K7914+65#4983#4918
40K → 25.2M283+25#4918#4893
25.2M → Finish1616+155#4893#4738
TOTALS2865663+2202
📊

Passing Visuals

Category:
Loading...

🔥Passing Intensity

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
Share Feedback

Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing