Boston Marathon logo
BOSTON MARATHON 2023

Vina Yiu

Bib: 14461•F

NY

0:00
0:00
/ mi
Be the first to cheer!
Overall
#0 / 26622
Top 36%
Gender (Female)
#0 / 11423
Top 16%
Division (F18-39)
#0 / 4884
Top 30%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
23:46
Rank: #11027
Start → 5K
23:46 | 7:39/mi
10K· 6.21 mi
47:33
Rank: #11370 (-343)
5K → 10K
23:47 | 7:39/mi
15K· 9.32 mi
1:11:13
Rank: #11296 (+74)
10K → 15K
23:40 | 7:37/mi
20K· 12.43 mi
1:34:45
Rank: #10915 (+381)
15K → 20K
23:32 | 7:34/mi
Half· 13.11 mi
1:39:53
Rank: #10896 (+19)
20K → Half
5:08 | 7:31/mi
25K· 15.53 mi
1:58:24
Rank: #10669 (+227)
Half → 25K
18:31 | 7:38/mi
30K· 18.64 mi
2:22:37
Rank: #10368 (+301)
25K → 30K
24:13 | 7:48/mi
20M
2:33:13
Rank: #10246 (+122)
30K → 20M
10:36 | 7:48/mi
21M
2:41:32
Rank: #10153 (+93)
20M → 21M
8:19 | 8:19/mi
35K· 21.75 mi
2:47:22
Rank: #10157 (-4)
21M → 35K
5:50 | 7:48/mi
23M
2:57:17
Rank: #10071 (+86)
35K → 23M
9:55 | 7:55/mi
24M
3:04:58
Rank: #10003 (+68)
23M → 24M
7:41 | 7:41/mi
40K· 24.85 mi
3:11:27
Rank: #9852 (+151)
24M → 40K
6:29 | 7:35/mi
25.2M
3:14:11
Rank: #9770 (+82)
40K → 25.2M
2:44 | 7:56/mi
Finish· 26.22 mi
3:21:18
Rank: #9536 (+234)
25.2M → Finish
7:07 | 6:59/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
Time1:39:53
Pace7:37 /mi
2nd Half
Distance13.11 mi
Time1:41:25
Pace7:44 /mi
📊Positive Split: 1.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:52:5323:467:3923:46
7:39
-
10K
6.21 mi11:16:4047:337:3923:47
7:39
0:00
15K
9.32 mi11:40:201:11:137:3823:40
7:37
-0:02
20K
12.43 mi12:03:521:34:457:3723:32
7:34
-0:03
Half
13.11 mi12:09:001:39:537:375:08
7:31
-0:03
25K
15.53 mi12:27:311:58:247:3718:31
7:38
+0:07
30K
18.64 mi12:51:442:22:377:3924:13
7:48
+0:10
20M
20.00 mi13:02:202:33:137:4010:36
7:48
0:00
21M
21.00 mi13:10:392:41:327:428:19
8:19
+0:31
35K
21.75 mi13:16:292:47:227:425:50
7:48
-0:31
23M
23.00 mi13:26:242:57:177:429:55
7:55
+0:07
24M
24.00 mi13:34:053:04:587:427:41
7:41
-0:14
40K
24.85 mi13:40:343:11:277:426:29
7:35
-0:06
25.2M
25.20 mi13:43:183:14:117:422:44
7:56
+0:21
Finish
26.22 mi13:50:253:21:187:417:07
6:59
-0:57

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

6:59 /mi

Average Pace

7:41 /mi

Slowest Pace

8:19 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:12:00

66% of race

Time at Steady Pace

1:00:59

30% of race

Time at Slower Pace

8:19

4% of race

Average Pace: 7:41 /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 mi10:52:5323:467:3923:46
7:39
#11027
10K
6.21 mi11:16:4047:337:3923:47
7:39
#11370
15K
9.32 mi11:40:201:11:137:3823:40
7:37
#11296
20K
12.43 mi12:03:521:34:457:3723:32
7:34
#10915
Half
13.11 mi12:09:001:39:537:375:08
7:31
#10896
25K
15.53 mi12:27:311:58:247:3718:31
7:38
#10669
30K
18.64 mi12:51:442:22:377:3924:13
7:48
#10368
20M
20.00 mi13:02:202:33:137:4010:36
7:48
#10246
21M
21.00 mi13:10:392:41:327:428:19
8:19
#10153
35K
21.75 mi13:16:292:47:227:425:50
7:48
#10157
23M
23.00 mi13:26:242:57:177:429:55
7:55
#10071
24M
24.00 mi13:34:053:04:587:427:41
7:41
#10003
40K
24.85 mi13:40:343:11:277:426:29
7:35
#9852
25.2M
25.20 mi13:43:183:14:117:422:44
7:56
#9770
Finish
26.22 mi13:50:253:21:187:417:07
6:59
#9536
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi110272340234011171(Top 42%)2439(Top 21%)2439(Top 50%)
10K6.21 mi3.10 mi11370-3432529-1892529-18911843(Top 44%)2778(Top 24%)2778(Top 57%)
15K9.32 mi3.11 mi11296+742488+412488+4111171(Top 42%)2439(Top 21%)2439(Top 50%)
20K12.43 mi3.11 mi10915+3812295+1932295+1939917(Top 37%)1876(Top 16%)1876(Top 38%)
Half13.11 mi0.68 mi10896+192285+102285+1010447(Top 39%)2102(Top 18%)2102(Top 43%)
25K15.53 mi2.42 mi10669+2272185+1002185+1009833(Top 37%)1930(Top 17%)1930(Top 40%)
30K18.64 mi3.11 mi10368+3012086+992086+999332(Top 35%)1852(Top 16%)1852(Top 38%)
20M20.00 mi1.36 mi10246+1222045+412045+418888(Top 33%)1755(Top 15%)1755(Top 36%)
21M21.00 mi1.00 mi10153+932018+272018+279346(Top 35%)2071(Top 18%)2071(Top 42%)
35K21.75 mi0.75 mi10157-42035-172035-1710649(Top 40%)2683(Top 23%)2683(Top 55%)
23M23.00 mi1.25 mi10071+862031+42031+49230(Top 35%)2133(Top 19%)2133(Top 44%)
24M24.00 mi1.00 mi10003+682038-72038-79002(Top 34%)2096(Top 18%)2096(Top 43%)
40K24.85 mi0.85 mi9852+1511993+451993+457256(Top 27%)1475(Top 13%)1475(Top 30%)
25.2M25.20 mi0.35 mi9770+821964+291964+296179(Top 23%)1129(Top 10%)1129(Top 23%)
Finish26.22 mi1.02 mi9536+2341882+821882+825150(Top 19%)787(Top 7%)787(Top 16%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 42%
×21stories
+97ft-345ft

Overall

11171

Females

2439

F18-39

2439

5K→10K

3.1 - 6.2 mi

Top 44%
×5stories
+79ft-138ft

Overall

11843

Females

2778

F18-39

2778

10K→15K

6.2 - 9.3 mi

Top 42%
×3stories
+67ft-78ft

Overall

11171

Females

2439

F18-39

2439

15K→20K

9.3 - 12.4 mi

Top 37%
×5stories
+106ft-86ft

Overall

9917

Females

1876

F18-39

1876

20K→Half

12.4 - 13.1 mi

Top 39%
×2stories
+19ft-37ft

Overall

10447

Females

2102

F18-39

2102

Half→25K

13.1 - 15.5 mi

Top 37%
×4stories
+66ft-88ft

Overall

9833

Females

1930

F18-39

1930

25K→30K

15.5 - 18.6 mi

Top 35%
×9stories
+181ft-148ft

Overall

9332

Females

1852

F18-39

1852

30K→20M

18.6 - 20.0 mi

Top 33%
×5stories
+64ft-50ft

Overall

8888

Females

1755

F18-39

1755

20M→21M

20.0 - 21.0 mi

Top 35%
×8stories
+106ft-24ft

Overall

9346

Females

2071

F18-39

2071

21M→35K

21.0 - 21.8 mi

Top 40%
×7stories
+17ft-86ft

Overall

10649

Females

2683

F18-39

2683

35K→23M

21.8 - 23.0 mi

Top 35%
×5stories
+23ft-63ft

Overall

9230

Females

2133

F18-39

2133

23M→24M

23.0 - 24.0 mi

Top 34%
×6stories
+12ft-82ft

Overall

9002

Females

2096

F18-39

2096

24M→40K

24.0 - 24.9 mi

Top 27%
×1story
+6ft-20ft

Overall

7256

Females

1475

F18-39

1475

40K→25.2M

24.9 - 25.2 mi

Top 23%
×1story
+13ft-16ft

Overall

6179

Females

1129

F18-39

1129

25.2M→Finish

25.2 - 26.2 mi

Top 19%
×2stories
+22ft-21ft

Overall

5150

Females

787

F18-39

787

Passing Analysis

Category:
Athletes Passed
2445*
Passed By
953
Net Change
+1491
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#11027
5K → 10K161504-343#11027#11370
10K → 15K216142+74#11370#11296
15K → 20K40423+381#11296#10915
20K → Half3819+19#10915#10896
Half → 25K25326+227#10896#10669
25K → 30K34241+301#10669#10368
30K → 20M145*23+122#10368#10246
20M → 21M13239+93#10246#10153
21M → 35K3741-4#10153#10157
35K → 23M12741+86#10157#10071
23M → 24M10233+68#10071#10003
24M → 40K161*10+151#10003#9852
40K → 25.2M842+82#9852#9770
25.2M → Finish243*9+234#9770#9536
TOTALS2445*953+1491

* Includes athletes who did not complete a segment (DNF/DNQ).

📊

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