Boston Marathon logo
BOSTON MARATHON 2023

Alejandro Garcia Irausquin

Bib: 9392•M

TX

0:00
0:00
/ mi
Masters
Be the first to cheer!
Overall
#0 / 26622
Top 32%
Gender (Male)
#0 / 15176
Top 46%
Masters (Masters Men)
#0 / 9891
Top 34%
Division (M45-49)
#0 / 2252
Top 46%
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
7:15/mi
22:32
↑ 97↓ 3451.5%
10K· 6.21 mi
6:57/mi
44:09
↑ 79↓ 1380.4%
15K· 9.32 mi
7:10/mi
1:06:26
↑ 67↓ 78
20K· 12.43 mi
7:20/mi
1:29:14
↑ 106↓ 860.1%
Half· 13.11 mi
7:15/mi
1:34:11
↑ 19↓ 370.5%
25K· 15.53 mi
7:35/mi
1:52:34
↑ 66↓ 880.2%
30K· 18.64 mi
7:50/mi
2:16:55
↑ 181↓ 1480.2%
20M
7:56/mi
2:27:42
↑ 64↓ 500.2%
21M
8:35/mi
2:36:17
↑ 106↓ 241.6%
35K· 21.75 mi
7:25/mi
2:41:50
↑ 17↓ 861.7%
23M
8:06/mi
2:51:59
↑ 23↓ 630.6%
24M
7:45/mi
2:59:44
↓ 821.3%
40K· 24.85 mi
7:51/mi
3:06:27
↓ 200.3%
25.2M
8:22/mi
3:09:20
↑ 13↓ 160.2%
Finish· 26.22 mi
7:48/mi
3:17:17
↑ 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
Time1:34:11
Pace7:11 /mi
2nd Half
Distance13.11 mi
Time1:43:06
Pace7:52 /mi
📊Positive Split: 9.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:48:5422:327:1522:32
7:15
-
10K
6.21 mi11:10:3144:097:0621:37
6:57
-0:18
15K
9.32 mi11:32:481:06:267:0822:17
7:10
+0:13
20K
12.43 mi11:55:361:29:147:1122:48
7:20
+0:10
Half
13.11 mi12:00:331:34:117:114:57
7:15
-0:05
25K
15.53 mi12:18:561:52:347:1518:23
7:35
+0:20
30K
18.64 mi12:43:172:16:557:2124:21
7:50
+0:15
20M
20.00 mi12:54:042:27:427:2310:47
7:56
+0:06
21M
21.00 mi13:02:392:36:177:278:35
8:35
+0:39
35K
21.75 mi13:08:122:41:507:265:33
7:25
-1:10
23M
23.00 mi13:18:212:51:597:2910:09
8:06
+0:41
24M
24.00 mi13:26:062:59:447:297:45
7:45
-0:21
40K
24.85 mi13:32:493:06:277:306:43
7:51
+0:06
25.2M
25.20 mi13:35:423:09:207:312:53
8:22
+0:31
Finish
26.22 mi13:43:393:17:177:327:57
7:48
-0:34

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

6:57 /mi

Average Pace

7:32 /mi

Slowest Pace

8:35 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:39:44

51% of race

Time at Steady Pace

1:15:56

38% of race

Time at Slower Pace

21:37

11% of race

Average Pace: 7:31 /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 mi10:48:5422:327:1522:32
7:15
#7809
10K
6.21 mi11:10:3144:097:0621:37
6:57
#7147
15K
9.32 mi11:32:481:06:267:0822:17
7:10
#7280
20K
12.43 mi11:55:361:29:147:1122:48
7:20
#7407
Half
13.11 mi12:00:331:34:117:114:57
7:15
#7442
25K
15.53 mi12:18:561:52:347:1518:23
7:35
#7697
30K
18.64 mi12:43:172:16:557:2124:21
7:50
#7979
20M
20.00 mi12:54:042:27:427:2310:47
7:56
#8056
21M
21.00 mi13:02:392:36:177:278:35
8:35
#8217
35K
21.75 mi13:08:122:41:507:265:33
7:25
#8178
23M
23.00 mi13:18:212:51:597:2910:09
8:06
#8297
24M
24.00 mi13:26:062:59:447:297:45
7:45
#8326
40K
24.85 mi13:32:493:06:277:306:43
7:51
#8324
25.2M
25.20 mi13:35:423:09:207:312:53
8:22
#8307
Finish
26.22 mi13:43:393:17:177:327:57
7:48
#8385
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM45-49Seg. OverallSeg. MalesSeg. M45-49
5K3.11 mi3.11 mi7809684668467606(Top 29%)6667(Top 44%)6667(Top 296%)
10K6.21 mi3.10 mi7147+6626372+4746372+4746543(Top 25%)5893(Top 39%)5893(Top 262%)
15K9.32 mi3.11 mi7280-1336459-876459-877606(Top 29%)6667(Top 44%)6667(Top 296%)
20K12.43 mi3.11 mi7407-1276544-856544-858072(Top 30%)6936(Top 46%)6936(Top 308%)
Half13.11 mi0.68 mi7442-356567-236567-238232(Top 31%)7046(Top 46%)7046(Top 313%)
25K15.53 mi2.42 mi7697-2556721-1546721-1549382(Top 35%)7648(Top 50%)7648(Top 340%)
30K18.64 mi3.11 mi7979-2826862-1416862-1419632(Top 36%)7628(Top 50%)7628(Top 339%)
20M20.00 mi1.36 mi8056-776893-316893-319763(Top 37%)7612(Top 50%)7612(Top 338%)
21M21.00 mi1.00 mi8217-1616972-796972-7910938(Top 41%)8083(Top 53%)8083(Top 359%)
35K21.75 mi0.75 mi8178+396934+386934+387916(Top 30%)6451(Top 43%)6451(Top 286%)
23M23.00 mi1.25 mi8297-1196998-646998-6410484(Top 39%)7706(Top 51%)7706(Top 342%)
24M24.00 mi1.00 mi8326-296993+56993+59398(Top 35%)7096(Top 47%)7096(Top 315%)
40K24.85 mi0.85 mi8324+26972+216972+218993(Top 34%)6803(Top 45%)6803(Top 302%)
25.2M25.20 mi0.35 mi8307+176950+226950+228618(Top 32%)6519(Top 43%)6519(Top 289%)
Finish26.22 mi1.02 mi8385-786977-276977-2710658(Top 40%)7623(Top 50%)7623(Top 338%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 29%
×21story building
+97ft-345ft

Overall

7606

Males

6667

M45-49

6667

5K→10K

3.1 - 6.2 mi

Top 25%
×5story building
+79ft-138ft

Overall

6543

Males

5893

M45-49

5893

10K→15K

6.2 - 9.3 mi

Top 29%
×3story building
+67ft-78ft

Overall

7606

Males

6667

M45-49

6667

15K→20K

9.3 - 12.4 mi

Top 30%
×5story building
+106ft-86ft

Overall

8072

Males

6936

M45-49

6936

20K→Half

12.4 - 13.1 mi

Top 31%
×2story building
+19ft-37ft

Overall

8232

Males

7046

M45-49

7046

Half→25K

13.1 - 15.5 mi

Top 35%
×4story building
+66ft-88ft

Overall

9382

Males

7648

M45-49

7648

25K→30K

15.5 - 18.6 mi

Top 36%
×9story building
+181ft-148ft

Overall

9632

Males

7628

M45-49

7628

30K→20M

18.6 - 20.0 mi

Top 37%
×5story building
+64ft-50ft

Overall

9763

Males

7612

M45-49

7612

20M→21M

20.0 - 21.0 mi

Top 41%
×8story building
+106ft-24ft

Overall

10938

Males

8083

M45-49

8083

21M→35K

21.0 - 21.8 mi

Top 30%
×7story building
+17ft-86ft

Overall

7916

Males

6451

M45-49

6451

35K→23M

21.8 - 23.0 mi

Top 39%
×5story building
+23ft-63ft

Overall

10484

Males

7706

M45-49

7706

23M→24M

23.0 - 24.0 mi

Top 35%
×6story building
+12ft-82ft

Overall

9398

Males

7096

M45-49

7096

24M→40K

24.0 - 24.9 mi

Top 34%
×1story
+6ft-20ft

Overall

8993

Males

6803

M45-49

6803

40K→25.2M

24.9 - 25.2 mi

Top 32%
×1story
+13ft-16ft

Overall

8618

Males

6519

M45-49

6519

25.2M→Finish

25.2 - 26.2 mi

Top 40%
×2story building
+22ft-21ft

Overall

10658

Males

7623

M45-49

7623

Passing Analysis

Category:
Athletes Passed
1345
Passed By
1921
Net Change
-576
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#7809
5K → 10K69432+662#7809#7147
10K → 15K80213-133#7147#7280
15K → 20K73200-127#7280#7407
20K → Half1247-35#7407#7442
Half → 25K34289-255#7442#7697
25K → 30K52334-282#7697#7979
30K → 20M63140-77#7979#8056
20M → 21M28189-161#8056#8217
21M → 35K6425+39#8217#8178
35K → 23M49168-119#8178#8297
23M → 24M5584-29#8297#8326
24M → 40K5957+2#8326#8324
40K → 25.2M3518+17#8324#8307
25.2M → Finish47125-78#8307#8385
TOTALS13451921-576
📊

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