Boston Marathon logo
BOSTON MARATHON 2025

Shulin Cui

Bib: 24076•F

CA

0:00
0:00
/ mi
Masters
Be the first to cheer!
Overall
#0 / 28404
Gender (Female)
#0 / 12228
Masters (Masters Women)
#0 / 6759
Division (F55-59)
#0 / 994
Top 49%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
28:07
Rank: #22636
Start → 5K
28:07 | 9:03/mi
10K· 6.21 mi
56:02
Rank: #22501 (+135)
5K → 10K
27:55 | 8:59/mi
15K· 9.32 mi
1:24:11
Rank: #22415 (+86)
10K → 15K
28:09 | 9:04/mi
20K· 12.43 mi
1:52:56
Rank: #22302 (+113)
15K → 20K
28:45 | 9:15/mi
Half· 13.11 mi
1:59:04
Rank: #22277 (+25)
20K → Half
6:08 | 8:59/mi
25K· 15.53 mi
2:21:33
Rank: #22051 (+226)
Half → 25K
22:29 | 9:16/mi
30K· 18.64 mi
2:50:56
Rank: #21620 (+431)
25K → 30K
29:23 | 9:27/mi
20M
3:03:57
Rank: #21448 (+172)
30K → 20M
13:01 | 9:35/mi
21M
3:14:01
Rank: #21290 (+158)
20M → 21M
10:04 | 10:04/mi
35K· 21.75 mi
3:20:52
Rank: #21186 (+104)
21M → 35K
6:51 | 9:09/mi
23M
3:32:42
Rank: #21021 (+165)
35K → 23M
11:50 | 9:27/mi
24M
3:42:01
Rank: #20933 (+88)
23M → 24M
9:19 | 9:19/mi
40K· 24.85 mi
3:50:08
Rank: #20856 (+77)
24M → 40K
8:07 | 9:30/mi
25.2M
3:53:34
Rank: #20790 (+66)
40K → 25.2M
3:26 | 9:57/mi
Finish· 26.22 mi
4:02:52
Rank: #20750 (+40)
25.2M → Finish
9:18 | 9:08/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
Time1:59:04
Pace9:05 /mi
2nd Half
Distance13.11 mi
Time2:03:48
Pace9:27 /mi
📊Positive Split: 4.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:25:1028:079:0328:07
9:03
-
10K
6.21 mi11:53:0556:029:0127:55
8:59
-0:04
15K
9.32 mi12:21:141:24:119:0228:09
9:04
+0:05
20K
12.43 mi12:49:591:52:569:0528:45
9:15
+0:11
Half
13.11 mi12:56:071:59:049:056:08
8:59
-0:16
25K
15.53 mi13:18:362:21:339:0722:29
9:16
+0:17
30K
18.64 mi13:47:592:50:569:1029:23
9:27
+0:11
20M
20.00 mi14:01:003:03:579:1213:01
9:35
+0:08
21M
21.00 mi14:11:043:14:019:1410:04
10:04
+0:29
35K
21.75 mi14:17:553:20:529:146:51
9:09
-0:55
23M
23.00 mi14:29:453:32:429:1511:50
9:27
+0:18
24M
24.00 mi14:39:043:42:019:159:19
9:19
-0:08
40K
24.85 mi14:47:113:50:089:168:07
9:30
+0:11
25.2M
25.20 mi14:50:373:53:349:163:26
9:57
+0:27
Finish
26.22 mi14:59:554:02:529:169:18
9:08
-0:49

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

8:59 /mi

Average Pace

9:16 /mi

Slowest Pace

10:04 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:49:22

94% of race

Time at Steady Pace

13:30

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 9:16 /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 mi11:25:1028:079:0328:07
9:03
#22636
10K
6.21 mi11:53:0556:029:0127:55
8:59
#22501
15K
9.32 mi12:21:141:24:119:0228:09
9:04
#22415
20K
12.43 mi12:49:591:52:569:0528:45
9:15
#22302
Half
13.11 mi12:56:071:59:049:056:08
8:59
#22277
25K
15.53 mi13:18:362:21:339:0722:29
9:16
#22051
30K
18.64 mi13:47:592:50:569:1029:23
9:27
#21620
20M
20.00 mi14:01:003:03:579:1213:01
9:35
#21448
21M
21.00 mi14:11:043:14:019:1410:04
10:04
#21290
35K
21.75 mi14:17:553:20:529:146:51
9:09
#21186
23M
23.00 mi14:29:453:32:429:1511:50
9:27
#21021
24M
24.00 mi14:39:043:42:019:159:19
9:19
#20933
40K
24.85 mi14:47:113:50:089:168:07
9:30
#20856
25.2M
25.20 mi14:50:373:53:349:163:26
9:57
#20790
Finish
26.22 mi14:59:554:02:529:169:18
9:08
#20750
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF55-59Seg. OverallSeg. FemalesSeg. F55-59
5K3.11 mi3.11 mi226368979897922298(Top 79%)8721(Top 71%)8721(Top 877%)
10K6.21 mi3.10 mi22501+1358890+898890+8922334(Top 79%)8781(Top 72%)8781(Top 883%)
15K9.32 mi3.11 mi22415+868814+768814+7622298(Top 79%)8721(Top 71%)8721(Top 877%)
20K12.43 mi3.11 mi22302+1138759+558759+5522096(Top 78%)8637(Top 71%)8637(Top 869%)
Half13.11 mi0.68 mi22277+258753+68753+621802(Top 77%)8474(Top 69%)8474(Top 853%)
25K15.53 mi2.42 mi22051+2268630+1238630+12321075(Top 74%)8138(Top 67%)8138(Top 819%)
30K18.64 mi3.11 mi21620+4318414+2168414+21619784(Top 70%)7542(Top 62%)7542(Top 759%)
20M20.00 mi1.36 mi21448+1728349+658349+6519548(Top 69%)7557(Top 62%)7557(Top 760%)
21M21.00 mi1.00 mi21290+1588276+738276+7318586(Top 65%)7111(Top 58%)7111(Top 715%)
35K21.75 mi0.75 mi21186+1048236+408236+4019021(Top 67%)7472(Top 61%)7472(Top 752%)
23M23.00 mi1.25 mi21021+1658171+658171+6518498(Top 65%)7240(Top 59%)7240(Top 728%)
24M24.00 mi1.00 mi20933+888140+318140+3118909(Top 67%)7509(Top 61%)7509(Top 755%)
40K24.85 mi0.85 mi20856+778118+228118+2218711(Top 66%)7487(Top 61%)7487(Top 753%)
25.2M25.20 mi0.35 mi20790+668096+228096+2216923(Top 60%)6577(Top 54%)6577(Top 662%)
Finish26.22 mi1.02 mi20750+408086+108086+1019657(Top 69%)7954(Top 65%)7954(Top 800%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 79%
×21stories
+97ft-345ft

Overall

22298

Females

8721

F55-59

8721

5K→10K

3.1 - 6.2 mi

Top 79%
×5stories
+79ft-138ft

Overall

22334

Females

8781

F55-59

8781

10K→15K

6.2 - 9.3 mi

Top 79%
×3stories
+67ft-78ft

Overall

22298

Females

8721

F55-59

8721

15K→20K

9.3 - 12.4 mi

Top 78%
×5stories
+106ft-86ft

Overall

22096

Females

8637

F55-59

8637

20K→Half

12.4 - 13.1 mi

Top 77%
×2stories
+19ft-37ft

Overall

21802

Females

8474

F55-59

8474

Half→25K

13.1 - 15.5 mi

Top 74%
×4stories
+66ft-88ft

Overall

21075

Females

8138

F55-59

8138

25K→30K

15.5 - 18.6 mi

Top 70%
×9stories
+181ft-148ft

Overall

19784

Females

7542

F55-59

7542

30K→20M

18.6 - 20.0 mi

Top 69%
×5stories
+64ft-50ft

Overall

19548

Females

7557

F55-59

7557

20M→21M

20.0 - 21.0 mi

Top 65%
×8stories
+106ft-24ft

Overall

18586

Females

7111

F55-59

7111

21M→35K

21.0 - 21.8 mi

Top 67%
×7stories
+17ft-86ft

Overall

19021

Females

7472

F55-59

7472

35K→23M

21.8 - 23.0 mi

Top 65%
×5stories
+23ft-63ft

Overall

18498

Females

7240

F55-59

7240

23M→24M

23.0 - 24.0 mi

Top 67%
×6stories
+12ft-82ft

Overall

18909

Females

7509

F55-59

7509

24M→40K

24.0 - 24.9 mi

Top 66%
×1story
+6ft-20ft

Overall

18711

Females

7487

F55-59

7487

40K→25.2M

24.9 - 25.2 mi

Top 60%
×1story
+13ft-16ft

Overall

16923

Females

6577

F55-59

6577

25.2M→Finish

25.2 - 26.2 mi

Top 69%
×2stories
+22ft-21ft

Overall

19657

Females

7954

F55-59

7954

Passing Analysis

Category:
Athletes Passed
2542
Passed By
656
Net Change
+1886
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#22636
5K → 10K319184+135#22636#22501
10K → 15K226140+86#22501#22415
15K → 20K224111+113#22415#22302
20K → Half4722+25#22302#22277
Half → 25K27044+226#22277#22051
25K → 30K46433+431#22051#21620
30K → 20M19826+172#21620#21448
20M → 21M17315+158#21448#21290
21M → 35K1106+104#21290#21186
35K → 23M18015+165#21186#21021
23M → 24M10416+88#21021#20933
24M → 40K9922+77#20933#20856
40K → 25.2M693+66#20856#20790
25.2M → Finish5919+40#20790#20750
TOTALS2542656+1886
📊

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