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BOSTON MARATHON 2025

Yuan Yuan

Bib: 23349•F

CA

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Masters (Masters Women)
#0 / 6759
Top 42%
Division (F50-54)
#0 / 1303
Top 37%
Race Day Weather
50°/40°F
broken clouds

⏱️ 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
8:53/mi
27:37
↑ 97↓ 3451.5%
10K· 6.21 mi
8:37/mi
54:23
↑ 79↓ 1380.4%
15K· 9.32 mi
8:29/mi
1:20:44
↑ 67↓ 78
20K· 12.43 mi
8:32/mi
1:47:15
↑ 106↓ 860.1%
Half· 13.11 mi
8:23/mi
1:52:58
↑ 19↓ 370.5%
25K· 15.53 mi
8:39/mi
2:13:56
↑ 66↓ 880.2%
30K· 18.64 mi
8:56/mi
2:41:40
↑ 181↓ 1480.2%
20M
8:52/mi
2:53:43
↑ 64↓ 500.2%
21M
9:17/mi
3:03:00
↑ 106↓ 241.6%
35K· 21.75 mi
8:36/mi
3:09:26
↑ 17↓ 861.7%
23M
8:37/mi
3:20:13
↑ 23↓ 630.6%
24M
8:18/mi
3:28:31
↓ 821.3%
40K· 24.85 mi
8:29/mi
3:35:46
↓ 200.3%
25.2M
9:14/mi
3:38:57
↑ 13↓ 160.2%
Finish· 26.22 mi
8:13/mi
3:47:19
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:52:58
Pace8:37 /mi
2nd Half
Distance13.11 mi
Time1:54:21
Pace8:43 /mi
📊Positive Split: 1.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:27:5427:378:5327:37
8:53
-
10K
6.21 mi11:54:4054:238:4526:46
8:37
-0:16
15K
9.32 mi12:21:011:20:448:4026:21
8:29
-0:08
20K
12.43 mi12:47:321:47:158:3826:31
8:32
+0:03
Half
13.11 mi12:53:151:52:588:375:43
8:23
-0:09
25K
15.53 mi13:14:132:13:568:3720:58
8:39
+0:16
30K
18.64 mi13:41:572:41:408:4027:44
8:56
+0:17
20M
20.00 mi13:54:002:53:438:4112:03
8:52
-0:04
21M
21.00 mi14:03:173:03:008:439:17
9:17
+0:25
35K
21.75 mi14:09:433:09:268:436:26
8:36
-0:41
23M
23.00 mi14:20:303:20:138:4210:47
8:37
+0:01
24M
24.00 mi14:28:483:28:318:418:18
8:18
-0:19
40K
24.85 mi14:36:033:35:468:417:15
8:29
+0:11
25.2M
25.20 mi14:39:143:38:578:413:11
9:14
+0:45
Finish
26.22 mi14:47:363:47:198:418:22
8:13
-1:01

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

8:13 /mi

Average Pace

8:41 /mi

Slowest Pace

9:17 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:34:51

95% of race

Time at Steady Pace

12:28

5% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:40 /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 mi11:27:5427:378:5327:37
8:53
#21947
10K
6.21 mi11:54:4054:238:4526:46
8:37
#21179
15K
9.32 mi12:21:011:20:448:4026:21
8:29
#20547
20K
12.43 mi12:47:321:47:158:3826:31
8:32
#20026
Half
13.11 mi12:53:151:52:588:375:43
8:23
#19955
25K
15.53 mi13:14:132:13:568:3720:58
8:39
#19631
30K
18.64 mi13:41:572:41:408:4027:44
8:56
#19185
20M
20.00 mi13:54:002:53:438:4112:03
8:52
#18942
21M
21.00 mi14:03:173:03:008:439:17
9:17
#18699
35K
21.75 mi14:09:433:09:268:436:26
8:36
#18610
23M
23.00 mi14:20:303:20:138:4210:47
8:37
#18315
24M
24.00 mi14:28:483:28:318:418:18
8:18
#18082
40K
24.85 mi14:36:033:35:468:417:15
8:29
#17896
25.2M
25.20 mi14:39:143:38:578:413:11
9:14
#17805
Finish
26.22 mi14:47:363:47:198:418:22
8:13
#17689
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF50-54Seg. OverallSeg. FemalesSeg. F50-54
5K3.11 mi3.11 mi219478593859319210(Top 68%)7008(Top 57%)7008(Top 538%)
10K6.21 mi3.10 mi21179+7688150+4438150+44320435(Top 72%)7704(Top 63%)7704(Top 591%)
15K9.32 mi3.11 mi20547+6327781+3697781+36919210(Top 68%)7008(Top 57%)7008(Top 538%)
20K12.43 mi3.11 mi20026+5217487+2947487+29418474(Top 65%)6613(Top 54%)6613(Top 508%)
Half13.11 mi0.68 mi19955+717450+377450+3718517(Top 65%)6631(Top 54%)6631(Top 509%)
25K15.53 mi2.42 mi19631+3247279+1717279+17118088(Top 64%)6476(Top 53%)6476(Top 497%)
30K18.64 mi3.11 mi19185+4467064+2157064+21517298(Top 61%)6189(Top 51%)6189(Top 475%)
20M20.00 mi1.36 mi18942+2436943+1216943+12116072(Top 57%)5640(Top 46%)5640(Top 433%)
21M21.00 mi1.00 mi18699+2436837+1066837+10615105(Top 53%)5238(Top 43%)5238(Top 402%)
35K21.75 mi0.75 mi18610+896796+416796+4116106(Top 57%)5849(Top 48%)5849(Top 449%)
23M23.00 mi1.25 mi18315+2956662+1346662+13414049(Top 49%)4827(Top 39%)4827(Top 370%)
24M24.00 mi1.00 mi18082+2336560+1026560+10213309(Top 47%)4484(Top 37%)4484(Top 344%)
40K24.85 mi0.85 mi17896+1866487+736487+7313357(Top 47%)4644(Top 38%)4644(Top 356%)
25.2M25.20 mi0.35 mi17805+916448+396448+3913215(Top 47%)4634(Top 38%)4634(Top 356%)
Finish26.22 mi1.02 mi17689+1166406+426406+4214380(Top 51%)5153(Top 42%)5153(Top 395%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 68%
×21story building
+97ft-345ft

Overall

19210

Females

7008

F50-54

7008

5K→10K

3.1 - 6.2 mi

Top 72%
×5story building
+79ft-138ft

Overall

20435

Females

7704

F50-54

7704

10K→15K

6.2 - 9.3 mi

Top 68%
×3story building
+67ft-78ft

Overall

19210

Females

7008

F50-54

7008

15K→20K

9.3 - 12.4 mi

Top 65%
×5story building
+106ft-86ft

Overall

18474

Females

6613

F50-54

6613

20K→Half

12.4 - 13.1 mi

Top 65%
×2story building
+19ft-37ft

Overall

18517

Females

6631

F50-54

6631

Half→25K

13.1 - 15.5 mi

Top 64%
×4story building
+66ft-88ft

Overall

18088

Females

6476

F50-54

6476

25K→30K

15.5 - 18.6 mi

Top 61%
×9story building
+181ft-148ft

Overall

17298

Females

6189

F50-54

6189

30K→20M

18.6 - 20.0 mi

Top 57%
×5story building
+64ft-50ft

Overall

16072

Females

5640

F50-54

5640

20M→21M

20.0 - 21.0 mi

Top 53%
×8story building
+106ft-24ft

Overall

15105

Females

5238

F50-54

5238

21M→35K

21.0 - 21.8 mi

Top 57%
×7story building
+17ft-86ft

Overall

16106

Females

5849

F50-54

5849

35K→23M

21.8 - 23.0 mi

Top 49%
×5story building
+23ft-63ft

Overall

14049

Females

4827

F50-54

4827

23M→24M

23.0 - 24.0 mi

Top 47%
×6story building
+12ft-82ft

Overall

13309

Females

4484

F50-54

4484

24M→40K

24.0 - 24.9 mi

Top 47%
×1story
+6ft-20ft

Overall

13357

Females

4644

F50-54

4644

40K→25.2M

24.9 - 25.2 mi

Top 47%
×1story
+13ft-16ft

Overall

13215

Females

4634

F50-54

4634

25.2M→Finish

25.2 - 26.2 mi

Top 51%
×2story building
+22ft-21ft

Overall

14380

Females

5153

F50-54

5153

Passing Analysis

Category:
Athletes Passed
4477
Passed By
219
Net Change
+4258
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#21947
5K → 10K81648+768#21947#21179
10K → 15K65826+632#21179#20547
15K → 20K53817+521#20547#20026
20K → Half754+71#20026#19955
Half → 25K34622+324#19955#19631
25K → 30K48539+446#19631#19185
30K → 20M25411+243#19185#18942
20M → 21M25411+243#18942#18699
21M → 35K10213+89#18699#18610
35K → 23M2972+295#18610#18315
23M → 24M2341+233#18315#18082
24M → 40K1915+186#18082#17896
40K → 25.2M921+91#17896#17805
25.2M → Finish13519+116#17805#17689
TOTALS4477219+4258
📊

Passing Visuals

Category:
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🔄Passing Circle

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🌊Position Flow

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🏃Race Lanes

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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing