Boston Marathon logo
BOSTON MARATHON 2023

Angela Larzo

Bib: 19690•F

CA

0:00
0:00
/ mi
Masters
Be the first to cheer!
Overall
#0 / 26622
Top 47%
Gender (Female)
#0 / 11423
Top 29%
Masters (Masters Women)
#0 / 6539
Top 16%
Division (F45-49)
#0 / 1817
Top 17%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
25:11
Rank: #14753
Start → 5K
25:11 | 8:06/mi
10K· 6.21 mi
49:36
Rank: #14269 (+484)
5K → 10K
24:25 | 7:52/mi
15K· 9.32 mi
1:14:06
Rank: #13972 (+297)
10K → 15K
24:30 | 7:53/mi
20K· 12.43 mi
1:38:46
Rank: #13684 (+288)
15K → 20K
24:40 | 7:56/mi
Half· 13.11 mi
1:44:10
Rank: #13677 (+7)
20K → Half
5:24 | 7:55/mi
25K· 15.53 mi
2:03:20
Rank: #13385 (+292)
Half → 25K
19:10 | 7:54/mi
30K· 18.64 mi
2:28:31
Rank: #13042 (+343)
25K → 30K
25:11 | 8:06/mi
20M
2:39:43
Rank: #12928 (+114)
30K → 20M
11:12 | 8:15/mi
21M
2:48:20
Rank: #12784 (+144)
20M → 21M
8:37 | 8:37/mi
35K· 21.75 mi
2:54:17
Rank: #12727 (+57)
21M → 35K
5:57 | 7:57/mi
23M
3:04:26
Rank: #12583 (+144)
35K → 23M
10:09 | 8:06/mi
24M
3:12:22
Rank: #12493 (+90)
23M → 24M
7:56 | 7:56/mi
40K· 24.85 mi
3:19:22
Rank: #12460 (+33)
24M → 40K
7:00 | 8:11/mi
25.2M
3:22:25
Rank: #12441 (+19)
40K → 25.2M
3:03 | 8:51/mi
Finish· 26.22 mi
3:30:38
Rank: #12436 (+5)
25.2M → Finish
8:13 | 8:04/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
Time1:44:10
Pace7:57 /mi
2nd Half
Distance13.11 mi
Time1:46:28
Pace8:07 /mi
📊Positive Split: 2.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:16:4025:118:0625:11
8:06
-
10K
6.21 mi11:41:0549:367:5924:25
7:52
-0:14
15K
9.32 mi12:05:351:14:067:5724:30
7:53
+0:01
20K
12.43 mi12:30:151:38:467:5724:40
7:56
+0:03
Half
13.11 mi12:35:391:44:107:575:24
7:55
-0:01
25K
15.53 mi12:54:492:03:207:5619:10
7:54
-0:01
30K
18.64 mi13:20:002:28:317:5825:11
8:06
+0:12
20M
20.00 mi13:31:122:39:437:5911:12
8:15
+0:09
21M
21.00 mi13:39:492:48:208:018:37
8:37
+0:22
35K
21.75 mi13:45:462:54:178:015:57
7:57
-0:40
23M
23.00 mi13:55:553:04:268:0110:09
8:06
+0:09
24M
24.00 mi14:03:513:12:228:017:56
7:56
-0:10
40K
24.85 mi14:10:513:19:228:017:00
8:11
+0:15
25.2M
25.20 mi14:13:543:22:258:023:03
8:51
+0:40
Finish
26.22 mi14:22:073:30:388:028:13
8:04
-0:47

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

7:52 /mi

Average Pace

8:02 /mi

Slowest Pace

8:51 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:27:35

99% of race

Time at Steady Pace

3:03

1% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:02 /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 mi11:16:4025:118:0625:11
8:06
#14753
10K
6.21 mi11:41:0549:367:5924:25
7:52
#14269
15K
9.32 mi12:05:351:14:067:5724:30
7:53
#13972
20K
12.43 mi12:30:151:38:467:5724:40
7:56
#13684
Half
13.11 mi12:35:391:44:107:575:24
7:55
#13677
25K
15.53 mi12:54:492:03:207:5619:10
7:54
#13385
30K
18.64 mi13:20:002:28:317:5825:11
8:06
#13042
20M
20.00 mi13:31:122:39:437:5911:12
8:15
#12928
21M
21.00 mi13:39:492:48:208:018:37
8:37
#12784
35K
21.75 mi13:45:462:54:178:015:57
7:57
#12727
23M
23.00 mi13:55:553:04:268:0110:09
8:06
#12583
24M
24.00 mi14:03:513:12:228:017:56
7:56
#12493
40K
24.85 mi14:10:513:19:228:017:00
8:11
#12460
25.2M
25.20 mi14:13:543:22:258:023:03
8:51
#12441
Finish
26.22 mi14:22:073:30:388:028:13
8:04
#12436
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF45-49Seg. OverallSeg. FemalesSeg. F45-49
5K3.11 mi3.11 mi147534484448413404(Top 50%)3727(Top 33%)3727(Top 205%)
10K6.21 mi3.10 mi14269+4844209+2754209+27513645(Top 51%)3819(Top 33%)3819(Top 210%)
15K9.32 mi3.11 mi13972+2974040+1694040+16913404(Top 50%)3727(Top 33%)3727(Top 205%)
20K12.43 mi3.11 mi13684+2883899+1413899+14112952(Top 49%)3521(Top 31%)3521(Top 194%)
Half13.11 mi0.68 mi13677+73892+73892+713718(Top 52%)3905(Top 34%)3905(Top 215%)
25K15.53 mi2.42 mi13385+2923737+1553737+15511975(Top 45%)3062(Top 27%)3062(Top 169%)
30K18.64 mi3.11 mi13042+3433575+1623575+16211700(Top 44%)3020(Top 26%)3020(Top 166%)
20M20.00 mi1.36 mi12928+1143530+453530+4511977(Top 45%)3263(Top 29%)3263(Top 180%)
21M21.00 mi1.00 mi12784+1443464+663464+6611187(Top 42%)2969(Top 26%)2969(Top 163%)
35K21.75 mi0.75 mi12727+573443+213443+2111824(Top 44%)3331(Top 29%)3331(Top 183%)
23M23.00 mi1.25 mi12583+1443376+673376+6710547(Top 40%)2796(Top 24%)2796(Top 154%)
24M24.00 mi1.00 mi12493+903347+293347+2910810(Top 41%)2989(Top 26%)2989(Top 165%)
40K24.85 mi0.85 mi12460+333350-33350-311297(Top 42%)3306(Top 29%)3306(Top 182%)
25.2M25.20 mi0.35 mi12441+193350335011641(Top 44%)3537(Top 31%)3537(Top 195%)
Finish26.22 mi1.02 mi12436+53369-193369-1912578(Top 47%)3995(Top 35%)3995(Top 220%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 50%
×21stories
+97ft-345ft

Overall

13404

Females

3727

F45-49

3727

5K→10K

3.1 - 6.2 mi

Top 51%
×5stories
+79ft-138ft

Overall

13645

Females

3819

F45-49

3819

10K→15K

6.2 - 9.3 mi

Top 50%
×3stories
+67ft-78ft

Overall

13404

Females

3727

F45-49

3727

15K→20K

9.3 - 12.4 mi

Top 49%
×5stories
+106ft-86ft

Overall

12952

Females

3521

F45-49

3521

20K→Half

12.4 - 13.1 mi

Top 52%
×2stories
+19ft-37ft

Overall

13718

Females

3905

F45-49

3905

Half→25K

13.1 - 15.5 mi

Top 45%
×4stories
+66ft-88ft

Overall

11975

Females

3062

F45-49

3062

25K→30K

15.5 - 18.6 mi

Top 44%
×9stories
+181ft-148ft

Overall

11700

Females

3020

F45-49

3020

30K→20M

18.6 - 20.0 mi

Top 45%
×5stories
+64ft-50ft

Overall

11977

Females

3263

F45-49

3263

20M→21M

20.0 - 21.0 mi

Top 42%
×8stories
+106ft-24ft

Overall

11187

Females

2969

F45-49

2969

21M→35K

21.0 - 21.8 mi

Top 44%
×7stories
+17ft-86ft

Overall

11824

Females

3331

F45-49

3331

35K→23M

21.8 - 23.0 mi

Top 40%
×5stories
+23ft-63ft

Overall

10547

Females

2796

F45-49

2796

23M→24M

23.0 - 24.0 mi

Top 41%
×6stories
+12ft-82ft

Overall

10810

Females

2989

F45-49

2989

24M→40K

24.0 - 24.9 mi

Top 42%
×1story
+6ft-20ft

Overall

11297

Females

3306

F45-49

3306

40K→25.2M

24.9 - 25.2 mi

Top 44%
×1story
+13ft-16ft

Overall

11641

Females

3537

F45-49

3537

25.2M→Finish

25.2 - 26.2 mi

Top 47%
×2stories
+22ft-21ft

Overall

12578

Females

3995

F45-49

3995

Passing Analysis

Category:
Athletes Passed
2903
Passed By
586
Net Change
+2317
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#14753
5K → 10K603119+484#14753#14269
10K → 15K36568+297#14269#13972
15K → 20K33446+288#13972#13684
20K → Half2922+7#13684#13677
Half → 25K31624+292#13677#13385
25K → 30K38441+343#13385#13042
30K → 20M15137+114#13042#12928
20M → 21M17632+144#12928#12784
21M → 35K8225+57#12784#12727
35K → 23M16016+144#12727#12583
23M → 24M11727+90#12583#12493
24M → 40K7340+33#12493#12460
40K → 25.2M4425+19#12460#12441
25.2M → Finish6964+5#12441#12436
TOTALS2903586+2317
📊

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