Boston Marathon logo
BOSTON MARATHON 2023

Alex Mira

Bib: 1398•M

CA

0:00
0:00
/ mi
Be the first to cheer!
Overall
#0 / 26622
Top 16%
Gender (Male)
#0 / 15176
Top 26%
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
19:38
Rank: #1514
Start → 5K
19:38 | 6:19/mi
10K· 6.21 mi
38:55
Rank: #1428 (+86)
5K → 10K
19:17 | 6:12/mi
15K· 9.32 mi
58:17
Rank: #1397 (+31)
10K → 15K
19:22 | 6:14/mi
20K· 12.43 mi
1:17:38
Rank: #1300 (+97)
15K → 20K
19:21 | 6:14/mi
Half· 13.11 mi
1:21:51
Rank: #1295 (+5)
20K → Half
4:13 | 6:11/mi
25K· 15.53 mi
1:36:59
Rank: #1269 (+26)
Half → 25K
15:08 | 6:14/mi
30K· 18.64 mi
1:57:18
Rank: #1315 (-46)
25K → 30K
20:19 | 6:32/mi
20M
2:07:19
Rank: #1549 (-234)
30K → 20M
10:01 | 7:22/mi
21M
2:16:28
Rank: #1996 (-447)
20M → 21M
9:09 | 9:09/mi
35K· 21.75 mi
2:21:51
Rank: #2129 (-133)
21M → 35K
5:23 | 7:12/mi
23M
2:31:21
Rank: #2323 (-194)
35K → 23M
9:30 | 7:35/mi
24M
2:38:56
Rank: #2473 (-150)
23M → 24M
7:35 | 7:35/mi
40K· 24.85 mi
2:47:32
Rank: #3203 (-730)
24M → 40K
8:36 | 10:04/mi
25.2M
2:51:15
Rank: #3531 (-328)
40K → 25.2M
3:43 | 10:47/mi
Finish· 26.22 mi
3:00:26
Rank: #4289 (-758)
25.2M → Finish
9:11 | 9:01/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
Time1:21:51
Pace6:15 /mi
2nd Half
Distance13.11 mi
Time1:38:35
Pace7:31 /mi
📊Positive Split: 20.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:20:0419:386:1919:38
6:19
-
10K
6.21 mi10:39:2138:556:1619:17
6:12
-0:07
15K
9.32 mi10:58:4358:176:1519:22
6:14
+0:02
20K
12.43 mi11:18:041:17:386:1519:21
6:14
0:00
Half
13.11 mi11:22:171:21:516:154:13
6:11
-0:03
25K
15.53 mi11:37:251:36:596:1515:08
6:14
+0:03
30K
18.64 mi11:57:441:57:186:1820:19
6:32
+0:18
20M
20.00 mi12:07:452:07:196:2210:01
7:22
+0:50
21M
21.00 mi12:16:542:16:286:309:09
9:09
+1:47
35K
21.75 mi12:22:172:21:516:315:23
7:12
-1:57
23M
23.00 mi12:31:472:31:216:359:30
7:35
+0:23
24M
24.00 mi12:39:222:38:566:377:35
7:35
0:00
40K
24.85 mi12:47:582:47:326:448:36
10:04
+2:29
25.2M
25.20 mi12:51:412:51:156:483:43
10:47
+0:43
Finish
26.22 mi13:00:523:00:266:539:11
9:01
-1:46

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

6:11 /mi

Average Pace

6:53 /mi

Slowest Pace

10:47 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:36:59

54% of race

Time at Steady Pace

52:48

29% of race

Time at Slower Pace

30:39

17% of race

Average Pace: 6:53 /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 mi10:20:0419:386:1919:38
6:19
#1514
10K
6.21 mi10:39:2138:556:1619:17
6:12
#1428
15K
9.32 mi10:58:4358:176:1519:22
6:14
#1397
20K
12.43 mi11:18:041:17:386:1519:21
6:14
#1300
Half
13.11 mi11:22:171:21:516:154:13
6:11
#1295
25K
15.53 mi11:37:251:36:596:1515:08
6:14
#1269
30K
18.64 mi11:57:441:57:186:1820:19
6:32
#1315
20M
20.00 mi12:07:452:07:196:2210:01
7:22
#1549
21M
21.00 mi12:16:542:16:286:309:09
9:09
#1996
35K
21.75 mi12:22:172:21:516:315:23
7:12
#2129
23M
23.00 mi12:31:472:31:216:359:30
7:35
#2323
24M
24.00 mi12:39:222:38:566:377:35
7:35
#2473
40K
24.85 mi12:47:582:47:326:448:36
10:04
#3203
25.2M
25.20 mi12:51:412:51:156:483:43
10:47
#3531
Finish
26.22 mi13:00:523:00:266:539:11
9:01
#4289
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi1514144114411372(Top 5%)1306(Top 9%)1306(Top 25%)
10K6.21 mi3.10 mi1428+861362+791362+791389(Top 5%)1324(Top 9%)1324(Top 25%)
15K9.32 mi3.11 mi1397+311332+301332+301372(Top 5%)1306(Top 9%)1306(Top 25%)
20K12.43 mi3.11 mi1300+971239+931239+931140(Top 4%)1088(Top 7%)1088(Top 21%)
Half13.11 mi0.68 mi1295+51233+61233+61328(Top 5%)1276(Top 8%)1276(Top 24%)
25K15.53 mi2.42 mi1269+261213+201213+201123(Top 4%)1070(Top 7%)1070(Top 20%)
30K18.64 mi3.11 mi1315-461256-431256-431720(Top 6%)1647(Top 11%)1647(Top 31%)
20M20.00 mi1.36 mi1549-2341479-2231479-2236002(Top 23%)5287(Top 35%)5287(Top 100%)
21M21.00 mi1.00 mi1996-4471912-4331912-43314171(Top 53%)9567(Top 63%)9567(Top 181%)
35K21.75 mi0.75 mi2129-1332040-1282040-1286441(Top 24%)5521(Top 36%)5521(Top 104%)
23M23.00 mi1.25 mi2323-1942225-1852225-1856960(Top 26%)5788(Top 38%)5788(Top 110%)
24M24.00 mi1.00 mi2473-1502365-1402365-1408226(Top 31%)6431(Top 42%)6431(Top 122%)
40K24.85 mi0.85 mi3203-7303030-6653030-66520102(Top 76%)11961(Top 79%)11961(Top 226%)
25.2M25.20 mi0.35 mi3531-3283332-3023332-30219861(Top 75%)11840(Top 78%)11840(Top 224%)
Finish26.22 mi1.02 mi4289-7584001-6694001-66917997(Top 68%)11057(Top 73%)11057(Top 209%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 5%
×21stories
+97ft-345ft

Overall

1372

Males

1306

M18-39

1306

5K→10K

3.1 - 6.2 mi

Top 5%
×5stories
+79ft-138ft

Overall

1389

Males

1324

M18-39

1324

10K→15K

6.2 - 9.3 mi

Top 5%
×3stories
+67ft-78ft

Overall

1372

Males

1306

M18-39

1306

15K→20K

9.3 - 12.4 mi

Top 4%
×5stories
+106ft-86ft

Overall

1140

Males

1088

M18-39

1088

20K→Half

12.4 - 13.1 mi

Top 5%
×2stories
+19ft-37ft

Overall

1328

Males

1276

M18-39

1276

Half→25K

13.1 - 15.5 mi

Top 4%
×4stories
+66ft-88ft

Overall

1123

Males

1070

M18-39

1070

25K→30K

15.5 - 18.6 mi

Top 6%
×9stories
+181ft-148ft

Overall

1720

Males

1647

M18-39

1647

30K→20M

18.6 - 20.0 mi

Top 23%
×5stories
+64ft-50ft

Overall

6002

Males

5287

M18-39

5287

20M→21M

20.0 - 21.0 mi

Top 53%
×8stories
+106ft-24ft

Overall

14171

Males

9567

M18-39

9567

21M→35K

21.0 - 21.8 mi

Top 24%
×7stories
+17ft-86ft

Overall

6441

Males

5521

M18-39

5521

35K→23M

21.8 - 23.0 mi

Top 26%
×5stories
+23ft-63ft

Overall

6960

Males

5788

M18-39

5788

23M→24M

23.0 - 24.0 mi

Top 31%
×6stories
+12ft-82ft

Overall

8226

Males

6431

M18-39

6431

24M→40K

24.0 - 24.9 mi

Top 76%
×1story
+6ft-20ft

Overall

20102

Males

11961

M18-39

11961

40K→25.2M

24.9 - 25.2 mi

Top 75%
×1story
+13ft-16ft

Overall

19861

Males

11840

M18-39

11840

25.2M→Finish

25.2 - 26.2 mi

Top 68%
×2stories
+22ft-21ft

Overall

17997

Males

11057

M18-39

11057

Passing Analysis

Category:
Athletes Passed
391
Passed By
3166
Net Change
-2775
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#1514
5K → 10K12640+86#1514#1428
10K → 15K6332+31#1428#1397
15K → 20K1069+97#1397#1300
20K → Half94+5#1300#1295
Half → 25K3913+26#1295#1269
25K → 30K3278-46#1269#1315
30K → 20M0234-234#1315#1549
20M → 21M0447-447#1549#1996
21M → 35K1134-133#1996#2129
35K → 23M6200-194#2129#2323
23M → 24M6156-150#2323#2473
24M → 40K3733-730#2473#3203
40K → 25.2M0328-328#3203#3531
25.2M → Finish0758-758#3531#4289
TOTALS3913166-2775
📊

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