Boston Marathon logo
BOSTON MARATHON 2023

Avril Silverman

Bib: 20491•F

MA

0:00
0:00
/ mi
Masters
Be the first to cheer!
Overall
#0 / 26622
Gender (Female)
#0 / 11423
Top 42%
Masters (Masters Women)
#0 / 6539
Top 29%
Division (F50-54)
#0 / 1207
Top 21%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
25:45
Rank: #16068
Start → 5K
25:45 | 8:17/mi
10K· 6.21 mi
51:08
Rank: #16030 (+38)
5K → 10K
25:23 | 8:10/mi
15K· 9.32 mi
1:16:46
Rank: #16092 (-62)
10K → 15K
25:38 | 8:15/mi
20K· 12.43 mi
1:42:27
Rank: #15878 (+214)
15K → 20K
25:41 | 8:16/mi
Half· 13.11 mi
1:48:03
Rank: #15870 (+8)
20K → Half
5:36 | 8:12/mi
25K· 15.53 mi
2:08:08
Rank: #15680 (+190)
Half → 25K
20:05 | 8:17/mi
30K· 18.64 mi
2:34:34
Rank: #15413 (+267)
25K → 30K
26:26 | 8:30/mi
20M
2:46:01
Rank: #15235 (+178)
30K → 20M
11:27 | 8:26/mi
21M
2:54:57
Rank: #15093 (+142)
20M → 21M
8:56 | 8:56/mi
35K· 21.75 mi
3:01:10
Rank: #15047 (+46)
21M → 35K
6:13 | 8:19/mi
23M
3:11:50
Rank: #14936 (+111)
35K → 23M
10:40 | 8:31/mi
24M
3:20:17
Rank: #14878 (+58)
23M → 24M
8:27 | 8:27/mi
40K· 24.85 mi
3:27:42
Rank: #14826 (+52)
24M → 40K
7:25 | 8:40/mi
25.2M
3:30:50
Rank: #14780 (+46)
40K → 25.2M
3:08 | 9:05/mi
Finish· 26.22 mi
3:39:16
Rank: #14744 (+36)
25.2M → Finish
8:26 | 8:17/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
Time1:48:03
Pace8:15 /mi
2nd Half
Distance13.11 mi
Time1:51:13
Pace8:29 /mi
📊Positive Split: 2.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:19:4625:458:1725:45
8:17
-
10K
6.21 mi11:45:0951:088:1425:23
8:10
-0:07
15K
9.32 mi12:10:471:16:468:1425:38
8:15
+0:05
20K
12.43 mi12:36:281:42:278:1525:41
8:16
+0:01
Half
13.11 mi12:42:041:48:038:155:36
8:12
-0:04
25K
15.53 mi13:02:092:08:088:1520:05
8:17
+0:05
30K
18.64 mi13:28:352:34:348:1826:26
8:30
+0:13
20M
20.00 mi13:40:022:46:018:1811:27
8:26
-0:04
21M
21.00 mi13:48:582:54:578:208:56
8:56
+0:30
35K
21.75 mi13:55:113:01:108:206:13
8:19
-0:37
23M
23.00 mi14:05:513:11:508:2010:40
8:31
+0:12
24M
24.00 mi14:14:183:20:178:218:27
8:27
-0:04
40K
24.85 mi14:21:433:27:428:217:25
8:40
+0:13
25.2M
25.20 mi14:24:513:30:508:223:08
9:05
+0:25
Finish
26.22 mi14:33:173:39:168:228:26
8:17
-0:48

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

8:10 /mi

Average Pace

8:22 /mi

Slowest Pace

9:05 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:36:08

99% of race

Time at Steady Pace

3:08

1% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:22 /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 mi11:19:4625:458:1725:45
8:17
#16068
10K
6.21 mi11:45:0951:088:1425:23
8:10
#16030
15K
9.32 mi12:10:471:16:468:1425:38
8:15
#16092
20K
12.43 mi12:36:281:42:278:1525:41
8:16
#15878
Half
13.11 mi12:42:041:48:038:155:36
8:12
#15870
25K
15.53 mi13:02:092:08:088:1520:05
8:17
#15680
30K
18.64 mi13:28:352:34:348:1826:26
8:30
#15413
20M
20.00 mi13:40:022:46:018:1811:27
8:26
#15235
21M
21.00 mi13:48:582:54:578:208:56
8:56
#15093
35K
21.75 mi13:55:113:01:108:206:13
8:19
#15047
23M
23.00 mi14:05:513:11:508:2010:40
8:31
#14936
24M
24.00 mi14:14:183:20:178:218:27
8:27
#14878
40K
24.85 mi14:21:433:27:428:217:25
8:40
#14826
25.2M
25.20 mi14:24:513:30:508:223:08
9:05
#14780
Finish
26.22 mi14:33:173:39:168:228:26
8:17
#14744
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF50-54Seg. OverallSeg. FemalesSeg. F50-54
5K3.11 mi3.11 mi160685328532816232(Top 61%)5428(Top 48%)5428(Top 450%)
10K6.21 mi3.10 mi16030+385296+325296+3216046(Top 60%)5300(Top 46%)5300(Top 439%)
15K9.32 mi3.11 mi16092-625341-455341-4516232(Top 61%)5428(Top 48%)5428(Top 450%)
20K12.43 mi3.11 mi15878+2145228+1135228+11315403(Top 58%)4967(Top 43%)4967(Top 412%)
Half13.11 mi0.68 mi15870+85231-35231-315883(Top 60%)5215(Top 46%)5215(Top 432%)
25K15.53 mi2.42 mi15680+1905138+935138+9314854(Top 56%)4736(Top 41%)4736(Top 392%)
30K18.64 mi3.11 mi15413+2675024+1145024+11414382(Top 54%)4558(Top 40%)4558(Top 378%)
20M20.00 mi1.36 mi15235+1784932+924932+9213202(Top 50%)3971(Top 35%)3971(Top 329%)
21M21.00 mi1.00 mi15093+1424856+764856+7613065(Top 49%)3986(Top 35%)3986(Top 330%)
35K21.75 mi0.75 mi15047+464843+134843+1314188(Top 53%)4668(Top 41%)4668(Top 387%)
23M23.00 mi1.25 mi14936+1114797+464797+4613382(Top 50%)4286(Top 38%)4286(Top 355%)
24M24.00 mi1.00 mi14878+584780+174780+1714206(Top 53%)4792(Top 42%)4792(Top 397%)
40K24.85 mi0.85 mi14826+524780478014392(Top 54%)4964(Top 43%)4964(Top 411%)
25.2M25.20 mi0.35 mi14780+464760+204760+2013079(Top 49%)4277(Top 37%)4277(Top 354%)
Finish26.22 mi1.02 mi14744+364755+54755+513971(Top 52%)4722(Top 41%)4722(Top 391%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 61%
×21stories
+97ft-345ft

Overall

16232

Females

5428

F50-54

5428

5K→10K

3.1 - 6.2 mi

Top 60%
×5stories
+79ft-138ft

Overall

16046

Females

5300

F50-54

5300

10K→15K

6.2 - 9.3 mi

Top 61%
×3stories
+67ft-78ft

Overall

16232

Females

5428

F50-54

5428

15K→20K

9.3 - 12.4 mi

Top 58%
×5stories
+106ft-86ft

Overall

15403

Females

4967

F50-54

4967

20K→Half

12.4 - 13.1 mi

Top 60%
×2stories
+19ft-37ft

Overall

15883

Females

5215

F50-54

5215

Half→25K

13.1 - 15.5 mi

Top 56%
×4stories
+66ft-88ft

Overall

14854

Females

4736

F50-54

4736

25K→30K

15.5 - 18.6 mi

Top 54%
×9stories
+181ft-148ft

Overall

14382

Females

4558

F50-54

4558

30K→20M

18.6 - 20.0 mi

Top 50%
×5stories
+64ft-50ft

Overall

13202

Females

3971

F50-54

3971

20M→21M

20.0 - 21.0 mi

Top 49%
×8stories
+106ft-24ft

Overall

13065

Females

3986

F50-54

3986

21M→35K

21.0 - 21.8 mi

Top 53%
×7stories
+17ft-86ft

Overall

14188

Females

4668

F50-54

4668

35K→23M

21.8 - 23.0 mi

Top 50%
×5stories
+23ft-63ft

Overall

13382

Females

4286

F50-54

4286

23M→24M

23.0 - 24.0 mi

Top 53%
×6stories
+12ft-82ft

Overall

14206

Females

4792

F50-54

4792

24M→40K

24.0 - 24.9 mi

Top 54%
×1story
+6ft-20ft

Overall

14392

Females

4964

F50-54

4964

40K→25.2M

24.9 - 25.2 mi

Top 49%
×1story
+13ft-16ft

Overall

13079

Females

4277

F50-54

4277

25.2M→Finish

25.2 - 26.2 mi

Top 52%
×2stories
+22ft-21ft

Overall

13971

Females

4722

F50-54

4722

Passing Analysis

Category:
Athletes Passed
2214
Passed By
890
Net Change
+1324
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#16068
5K → 10K313275+38#16068#16030
10K → 15K174236-62#16030#16092
15K → 20K28066+214#16092#15878
20K → Half3527+8#15878#15870
Half → 25K23040+190#15870#15680
25K → 30K32457+267#15680#15413
30K → 20M19012+178#15413#15235
20M → 21M16523+142#15235#15093
21M → 35K7024+46#15093#15047
35K → 23M13120+111#15047#14936
23M → 24M9133+58#14936#14878
24M → 40K8735+52#14878#14826
40K → 25.2M515+46#14826#14780
25.2M → Finish7337+36#14780#14744
TOTALS2214890+1324
📊

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