Boston Marathon logo
BOSTON MARATHON 2023

Yanting Ma

Bib: 13321•F

MA

0:00
0:00
/ mi
Be the first to cheer!
Overall
#0 / 26622
Top 28%
Gender (Female)
#0 / 11423
Top 9%
Division (F18-39)
#0 / 4884
Top 17%
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
7:20/mi
22:48
↑ 97↓ 3451.5%
10K· 6.21 mi
7:05/mi
44:48
↑ 79↓ 1380.4%
15K· 9.32 mi
7:13/mi
1:07:12
↑ 67↓ 78
20K· 12.43 mi
7:21/mi
1:30:01
↑ 106↓ 860.1%
Half· 13.11 mi
7:18/mi
1:35:00
↑ 19↓ 370.5%
25K· 15.53 mi
7:24/mi
1:52:57
↑ 66↓ 880.2%
30K· 18.64 mi
7:33/mi
2:16:25
↑ 181↓ 1480.2%
20M
7:36/mi
2:26:45
↑ 64↓ 500.2%
21M
7:52/mi
2:34:37
↑ 106↓ 241.6%
35K· 21.75 mi
7:13/mi
2:40:01
↑ 17↓ 861.7%
23M
7:30/mi
2:49:25
↑ 23↓ 630.6%
24M
7:23/mi
2:56:48
↓ 821.3%
40K· 24.85 mi
7:35/mi
3:03:17
↓ 200.3%
25.2M
8:10/mi
3:06:06
↑ 13↓ 160.2%
Finish· 26.22 mi
7:28/mi
3:13:43
↑ 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
Time1:35:00
Pace7:15 /mi
2nd Half
Distance13.11 mi
Time1:38:43
Pace7:32 /mi
📊Positive Split: 3.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:51:0522:487:2022:48
7:20
-
10K
6.21 mi11:13:0544:487:1322:00
7:05
-0:15
15K
9.32 mi11:35:291:07:127:1322:24
7:13
+0:08
20K
12.43 mi11:58:181:30:017:1522:49
7:21
+0:08
Half
13.11 mi12:03:171:35:007:154:59
7:18
-0:03
25K
15.53 mi12:21:141:52:577:1617:57
7:24
+0:06
30K
18.64 mi12:44:422:16:257:1923:28
7:33
+0:09
20M
20.00 mi12:55:022:26:457:2010:20
7:36
+0:03
21M
21.00 mi13:02:542:34:377:227:52
7:52
+0:16
35K
21.75 mi13:08:182:40:017:215:24
7:13
-0:39
23M
23.00 mi13:17:422:49:257:229:24
7:30
+0:17
24M
24.00 mi13:25:052:56:487:227:23
7:23
-0:07
40K
24.85 mi13:31:343:03:177:226:29
7:35
+0:12
25.2M
25.20 mi13:34:233:06:067:232:49
8:10
+0:35
Finish
26.22 mi13:42:003:13:437:247:37
7:28
-0:42

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

7:05 /mi

Average Pace

7:24 /mi

Slowest Pace

8:10 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:03:02

94% of race

Time at Steady Pace

10:41

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:23 /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 mi10:51:0522:487:2022:48
7:20
#8384
10K
6.21 mi11:13:0544:487:1322:00
7:05
#7836
15K
9.32 mi11:35:291:07:127:1322:24
7:13
#7818
20K
12.43 mi11:58:181:30:017:1522:49
7:21
#7860
Half
13.11 mi12:03:171:35:007:154:59
7:18
#7887
25K
15.53 mi12:21:141:52:577:1617:57
7:24
#7869
30K
18.64 mi12:44:422:16:257:1923:28
7:33
#7766
20M
20.00 mi12:55:022:26:457:2010:20
7:36
#7720
21M
21.00 mi13:02:542:34:377:227:52
7:52
#7618
35K
21.75 mi13:08:182:40:017:215:24
7:13
#7556
23M
23.00 mi13:17:422:49:257:229:24
7:30
#7440
24M
24.00 mi13:25:052:56:487:227:23
7:23
#7388
40K
24.85 mi13:31:343:03:177:226:29
7:35
#7363
25.2M
25.20 mi13:34:233:06:067:232:49
8:10
#7358
Finish
26.22 mi13:42:003:13:437:247:37
7:28
#7360
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi8384114911497871(Top 30%)1026(Top 9%)1026(Top 21%)
10K6.21 mi3.10 mi7836+548961+188961+1887334(Top 28%)841(Top 7%)841(Top 17%)
15K9.32 mi3.11 mi7818+18972-11972-117871(Top 30%)1026(Top 9%)1026(Top 21%)
20K12.43 mi3.11 mi7860-421000-281000-288115(Top 30%)1141(Top 10%)1141(Top 23%)
Half13.11 mi0.68 mi7887-271014-141014-148675(Top 33%)1335(Top 12%)1335(Top 27%)
25K15.53 mi2.42 mi7869+181033-191033-198062(Top 30%)1211(Top 11%)1211(Top 25%)
30K18.64 mi3.11 mi7766+1031029+41029+47613(Top 29%)1147(Top 10%)1147(Top 23%)
20M20.00 mi1.36 mi7720+461028+11028+17538(Top 28%)1226(Top 11%)1226(Top 25%)
21M21.00 mi1.00 mi7618+1021013+151013+156570(Top 25%)967(Top 8%)967(Top 20%)
35K21.75 mi0.75 mi7556+621002+111002+116678(Top 25%)980(Top 9%)980(Top 20%)
23M23.00 mi1.25 mi7440+116985+17985+176486(Top 24%)987(Top 9%)987(Top 20%)
24M24.00 mi1.00 mi7388+529859856955(Top 26%)1250(Top 11%)1250(Top 26%)
40K24.85 mi0.85 mi7363+251002-171002-177234(Top 27%)1453(Top 13%)1453(Top 30%)
25.2M25.20 mi0.35 mi7358+51013-111013-117535(Top 28%)1605(Top 14%)1605(Top 33%)
Finish26.22 mi1.02 mi7360-21033-201033-208379(Top 31%)1980(Top 17%)1980(Top 41%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 30%
×21story building
+97ft-345ft

Overall

7871

Females

1026

F18-39

1026

5K→10K

3.1 - 6.2 mi

Top 28%
×5story building
+79ft-138ft

Overall

7334

Females

841

F18-39

841

10K→15K

6.2 - 9.3 mi

Top 30%
×3story building
+67ft-78ft

Overall

7871

Females

1026

F18-39

1026

15K→20K

9.3 - 12.4 mi

Top 30%
×5story building
+106ft-86ft

Overall

8115

Females

1141

F18-39

1141

20K→Half

12.4 - 13.1 mi

Top 33%
×2story building
+19ft-37ft

Overall

8675

Females

1335

F18-39

1335

Half→25K

13.1 - 15.5 mi

Top 30%
×4story building
+66ft-88ft

Overall

8062

Females

1211

F18-39

1211

25K→30K

15.5 - 18.6 mi

Top 29%
×9story building
+181ft-148ft

Overall

7613

Females

1147

F18-39

1147

30K→20M

18.6 - 20.0 mi

Top 28%
×5story building
+64ft-50ft

Overall

7538

Females

1226

F18-39

1226

20M→21M

20.0 - 21.0 mi

Top 25%
×8story building
+106ft-24ft

Overall

6570

Females

967

F18-39

967

21M→35K

21.0 - 21.8 mi

Top 25%
×7story building
+17ft-86ft

Overall

6678

Females

980

F18-39

980

35K→23M

21.8 - 23.0 mi

Top 24%
×5story building
+23ft-63ft

Overall

6486

Females

987

F18-39

987

23M→24M

23.0 - 24.0 mi

Top 26%
×6story building
+12ft-82ft

Overall

6955

Females

1250

F18-39

1250

24M→40K

24.0 - 24.9 mi

Top 27%
×1story
+6ft-20ft

Overall

7234

Females

1453

F18-39

1453

40K→25.2M

24.9 - 25.2 mi

Top 28%
×1story
+13ft-16ft

Overall

7535

Females

1605

F18-39

1605

25.2M→Finish

25.2 - 26.2 mi

Top 31%
×2story building
+22ft-21ft

Overall

8379

Females

1980

F18-39

1980

Passing Analysis

Category:
Athletes Passed
1825
Passed By
801
Net Change
+1024
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#8384
5K → 10K60961+548#8384#7836
10K → 15K151133+18#7836#7818
15K → 20K104146-42#7818#7860
20K → Half1340-27#7860#7887
Half → 25K10688+18#7887#7869
25K → 30K18885+103#7869#7766
30K → 20M8741+46#7766#7720
20M → 21M12018+102#7720#7618
21M → 35K7311+62#7618#7556
35K → 23M13115+116#7556#7440
23M → 24M8331+52#7440#7388
24M → 40K6338+25#7388#7363
40K → 25.2M3025+5#7363#7358
25.2M → Finish6769-2#7358#7360
TOTALS1825801+1024
📊

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