Boston Marathon logo
BOSTON MARATHON 2023

Karina Penaloza

Bib: 16336•F

0:00
0:00
/ mi
Masters
Be the first to cheer!
Overall
#0 / 26622
Gender (Female)
#0 / 11423
Top 35%
Masters (Masters Women)
#0 / 6539
Top 22%
Division (F40-44)
#0 / 1878
Top 40%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
24:04
Rank: #11902
Start → 5K
24:04 | 7:45/mi
10K· 6.21 mi
47:21
Rank: #11107 (+795)
5K → 10K
23:17 | 7:30/mi
15K· 9.32 mi
1:10:44
Rank: #10836 (+271)
10K → 15K
23:23 | 7:32/mi
20K· 12.43 mi
1:34:41
Rank: #10868 (-32)
15K → 20K
23:57 | 7:43/mi
Half· 13.11 mi
1:39:50
Rank: #10860 (+8)
20K → Half
5:09 | 7:33/mi
25K· 15.53 mi
1:58:24
Rank: #10673 (+187)
Half → 25K
18:34 | 7:39/mi
30K· 18.64 mi
2:24:01
Rank: #10970 (-297)
25K → 30K
25:37 | 8:15/mi
20M
2:39:35
Rank: #12876 (-1906)
30K → 20M
15:34 | 11:27/mi
21M
2:48:57
Rank: #13023 (-147)
20M → 21M
9:22 | 9:22/mi
35K· 21.75 mi
2:55:37
Rank: #13213 (-190)
21M → 35K
6:40 | 8:55/mi
23M
3:06:39
Rank: #13318 (-105)
35K → 23M
11:02 | 8:49/mi
24M
3:15:31
Rank: #13472 (-154)
23M → 24M
8:52 | 8:52/mi
40K· 24.85 mi
3:23:09
Rank: #13567 (-95)
24M → 40K
7:38 | 8:56/mi
25.2M
3:26:16
Rank: #13542 (+25)
40K → 25.2M
3:07 | 9:02/mi
Finish· 26.22 mi
3:34:34
Rank: #13517 (+25)
25.2M → Finish
8:18 | 8:09/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
Time1:39:50
Pace7:37 /mi
2nd Half
Distance13.11 mi
Time1:54:44
Pace8:45 /mi
📊Positive Split: 14.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:19:0124:047:4524:04
7:45
-
10K
6.21 mi11:42:1847:217:3723:17
7:30
-0:15
15K
9.32 mi12:05:411:10:447:3523:23
7:32
+0:02
20K
12.43 mi12:29:381:34:417:3723:57
7:43
+0:11
Half
13.11 mi12:34:471:39:507:375:09
7:33
-0:10
25K
15.53 mi12:53:211:58:247:3718:34
7:39
+0:06
30K
18.64 mi13:18:582:24:017:4425:37
8:15
+0:36
20M
20.00 mi13:34:322:39:357:5915:34
11:27
+3:12
21M
21.00 mi13:43:542:48:578:039:22
9:22
-2:05
35K
21.75 mi13:50:342:55:378:056:40
8:55
-0:27
23M
23.00 mi14:01:363:06:398:0711:02
8:49
-0:06
24M
24.00 mi14:10:283:15:318:098:52
8:52
+0:03
40K
24.85 mi14:18:063:23:098:107:38
8:56
+0:04
25.2M
25.20 mi14:21:133:26:168:113:07
9:02
+0:06
Finish
26.22 mi14:29:313:34:348:118:18
8:09
-0:53

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

7:30 /mi

Average Pace

8:11 /mi

Slowest Pace

11:27 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:34:20

44% of race

Time at Steady Pace

57:59

27% of race

Time at Slower Pace

1:02:15

29% of race

Average Pace: 8:11 /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 mi11:19:0124:047:4524:04
7:45
#11902
10K
6.21 mi11:42:1847:217:3723:17
7:30
#11107
15K
9.32 mi12:05:411:10:447:3523:23
7:32
#10836
20K
12.43 mi12:29:381:34:417:3723:57
7:43
#10868
Half
13.11 mi12:34:471:39:507:375:09
7:33
#10860
25K
15.53 mi12:53:211:58:247:3718:34
7:39
#10673
30K
18.64 mi13:18:582:24:017:4425:37
8:15
#10970
20M
20.00 mi13:34:322:39:357:5915:34
11:27
#12876
21M
21.00 mi13:43:542:48:578:039:22
9:22
#13023
35K
21.75 mi13:50:342:55:378:056:40
8:55
#13213
23M
23.00 mi14:01:363:06:398:0711:02
8:49
#13318
24M
24.00 mi14:10:283:15:318:098:52
8:52
#13472
40K
24.85 mi14:18:063:23:098:107:38
8:56
#13567
25.2M
25.20 mi14:21:133:26:168:113:07
9:02
#13542
Finish
26.22 mi14:29:313:34:348:118:18
8:09
#13517
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF40-44Seg. OverallSeg. FemalesSeg. F40-44
5K3.11 mi3.11 mi119022816281610406(Top 39%)2033(Top 18%)2033(Top 108%)
10K6.21 mi3.10 mi11107+7952382+4342382+43410415(Top 39%)2018(Top 18%)2018(Top 107%)
15K9.32 mi3.11 mi10836+2712256+1262256+12610406(Top 39%)2033(Top 18%)2033(Top 108%)
20K12.43 mi3.11 mi10868-322278-222278-2211011(Top 41%)2415(Top 21%)2415(Top 129%)
Half13.11 mi0.68 mi10860+82269+92269+910712(Top 40%)2250(Top 20%)2250(Top 120%)
25K15.53 mi2.42 mi10673+1872189+802189+809999(Top 38%)2011(Top 18%)2011(Top 107%)
30K18.64 mi3.11 mi10970-2972389-2002389-20012662(Top 48%)3566(Top 31%)3566(Top 190%)
20M20.00 mi1.36 mi12876-19063498-11093498-110923461(Top 88%)9763(Top 85%)9763(Top 520%)
21M21.00 mi1.00 mi13023-1473600-1023600-10215336(Top 58%)5244(Top 46%)5244(Top 279%)
35K21.75 mi0.75 mi13213-1903721-1213721-12117501(Top 66%)6543(Top 57%)6543(Top 348%)
23M23.00 mi1.25 mi13318-1053807-863807-8615062(Top 57%)5208(Top 46%)5208(Top 277%)
24M24.00 mi1.00 mi13472-1543924-1173924-11716584(Top 62%)6114(Top 54%)6114(Top 326%)
40K24.85 mi0.85 mi13567-954000-764000-7615764(Top 59%)5708(Top 50%)5708(Top 304%)
25.2M25.20 mi0.35 mi13542+253993+73993+712796(Top 48%)4129(Top 36%)4129(Top 220%)
Finish26.22 mi1.02 mi13517+254001-84001-813093(Top 49%)4262(Top 37%)4262(Top 227%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 39%
×21stories
+97ft-345ft

Overall

10406

Females

2033

F40-44

2033

5K→10K

3.1 - 6.2 mi

Top 39%
×5stories
+79ft-138ft

Overall

10415

Females

2018

F40-44

2018

10K→15K

6.2 - 9.3 mi

Top 39%
×3stories
+67ft-78ft

Overall

10406

Females

2033

F40-44

2033

15K→20K

9.3 - 12.4 mi

Top 41%
×5stories
+106ft-86ft

Overall

11011

Females

2415

F40-44

2415

20K→Half

12.4 - 13.1 mi

Top 40%
×2stories
+19ft-37ft

Overall

10712

Females

2250

F40-44

2250

Half→25K

13.1 - 15.5 mi

Top 38%
×4stories
+66ft-88ft

Overall

9999

Females

2011

F40-44

2011

25K→30K

15.5 - 18.6 mi

Top 48%
×9stories
+181ft-148ft

Overall

12662

Females

3566

F40-44

3566

30K→20M

18.6 - 20.0 mi

Top 88%
×5stories
+64ft-50ft

Overall

23461

Females

9763

F40-44

9763

20M→21M

20.0 - 21.0 mi

Top 58%
×8stories
+106ft-24ft

Overall

15336

Females

5244

F40-44

5244

21M→35K

21.0 - 21.8 mi

Top 66%
×7stories
+17ft-86ft

Overall

17501

Females

6543

F40-44

6543

35K→23M

21.8 - 23.0 mi

Top 57%
×5stories
+23ft-63ft

Overall

15062

Females

5208

F40-44

5208

23M→24M

23.0 - 24.0 mi

Top 62%
×6stories
+12ft-82ft

Overall

16584

Females

6114

F40-44

6114

24M→40K

24.0 - 24.9 mi

Top 59%
×1story
+6ft-20ft

Overall

15764

Females

5708

F40-44

5708

40K→25.2M

24.9 - 25.2 mi

Top 48%
×1story
+13ft-16ft

Overall

12796

Females

4129

F40-44

4129

25.2M→Finish

25.2 - 26.2 mi

Top 49%
×2stories
+22ft-21ft

Overall

13093

Females

4262

F40-44

4262

Passing Analysis

Category:
Athletes Passed
2054
Passed By
3669
Net Change
-1615
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#11902
5K → 10K86974+795#11902#11107
10K → 15K34170+271#11107#10836
15K → 20K150182-32#10836#10868
20K → Half3628+8#10868#10860
Half → 25K22134+187#10860#10673
25K → 30K104401-297#10673#10970
30K → 20M31909-1906#10970#12876
20M → 21M59206-147#12876#13023
21M → 35K14204-190#13023#13213
35K → 23M65170-105#13213#13318
23M → 24M33187-154#13318#13472
24M → 40K33128-95#13472#13567
40K → 25.2M4116+25#13567#13542
25.2M → Finish8560+25#13542#13517
TOTALS20543669-1615
📊

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