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BOSTON MARATHON 2025

Biyun Jin

Bib: 24842•F

MD

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Masters (Masters Women)
#0 / 6759
Division (F60-64)
#0 / 624
Top 21%
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
9:18/mi
28:54
↑ 97↓ 3451.5%
10K· 6.21 mi
9:06/mi
57:09
↑ 79↓ 1380.4%
15K· 9.32 mi
9:03/mi
1:25:17
↑ 67↓ 78
20K· 12.43 mi
9:05/mi
1:53:30
↑ 106↓ 860.1%
Half· 13.11 mi
8:56/mi
1:59:36
↑ 19↓ 370.5%
25K· 15.53 mi
8:59/mi
2:21:22
↑ 66↓ 880.2%
30K· 18.64 mi
9:14/mi
2:50:02
↑ 181↓ 1480.2%
20M
9:16/mi
3:02:38
↑ 64↓ 500.2%
21M
9:43/mi
3:12:21
↑ 106↓ 241.6%
35K· 21.75 mi
8:49/mi
3:18:57
↑ 17↓ 861.7%
23M
8:52/mi
3:30:03
↑ 23↓ 630.6%
24M
8:32/mi
3:38:35
↓ 821.3%
40K· 24.85 mi
8:44/mi
3:46:03
↓ 200.3%
25.2M
9:25/mi
3:49:18
↑ 13↓ 160.2%
Finish· 26.22 mi
8:31/mi
3:57:59
↑ 22↓ 21

The Course

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Half Splits

1st Half· via Half
Distance13.11 mi
Time1:59:36
Pace9:07 /mi
2nd Half✓ Faster
Distance13.11 mi
Time1:58:23
Pace9:02 /mi
📊Negative Split: 1.0% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:30:3228:549:1828:54
9:18
-
10K
6.21 mi11:58:4757:099:1228:15
9:06
-0:12
15K
9.32 mi12:26:551:25:179:0928:08
9:03
-0:03
20K
12.43 mi12:55:081:53:309:0828:13
9:05
+0:02
Half
13.11 mi13:01:141:59:369:076:06
8:56
-0:09
25K
15.53 mi13:23:002:21:229:0621:46
8:59
+0:03
30K
18.64 mi13:51:402:50:029:0728:40
9:14
+0:15
20M
20.00 mi14:04:163:02:389:0812:36
9:16
+0:02
21M
21.00 mi14:13:593:12:219:109:43
9:43
+0:27
35K
21.75 mi14:20:353:18:579:096:36
8:49
-0:54
23M
23.00 mi14:31:413:30:039:0811:06
8:52
+0:03
24M
24.00 mi14:40:133:38:359:068:32
8:32
-0:20
40K
24.85 mi14:47:413:46:039:067:28
8:44
+0:12
25.2M
25.20 mi14:50:563:49:189:063:15
9:25
+0:41
Finish
26.22 mi14:59:373:57:599:058:41
8:31
-0:54

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

8:31 /mi

Average Pace

9:05 /mi

Slowest Pace

9:43 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:45:01

95% of race

Time at Steady Pace

12:58

5% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 9:05 /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 mi11:30:3228:549:1828:54
9:18
#23563
10K
6.21 mi11:58:4757:099:1228:15
9:06
#23194
15K
9.32 mi12:26:551:25:179:0928:08
9:03
#22911
20K
12.43 mi12:55:081:53:309:0828:13
9:05
#22494
Half
13.11 mi13:01:141:59:369:076:06
8:56
#22437
25K
15.53 mi13:23:002:21:229:0621:46
8:59
#21998
30K
18.64 mi13:51:402:50:029:0728:40
9:14
#21416
20M
20.00 mi14:04:163:02:389:0812:36
9:16
#21167
21M
21.00 mi14:13:593:12:219:109:43
9:43
#20930
35K
21.75 mi14:20:353:18:579:096:36
8:49
#20792
23M
23.00 mi14:31:413:30:039:0811:06
8:52
#20519
24M
24.00 mi14:40:133:38:359:068:32
8:32
#20327
40K
24.85 mi14:47:413:46:039:067:28
8:44
#20150
25.2M
25.20 mi14:50:563:49:189:063:15
9:25
#20067
Finish
26.22 mi14:59:373:57:599:058:41
8:31
#19936
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF60-64Seg. OverallSeg. FemalesSeg. F60-64
5K3.11 mi3.11 mi235639466946622277(Top 78%)8707(Top 71%)8707(Top 1395%)
10K6.21 mi3.10 mi23194+3699252+2149252+21422790(Top 80%)9016(Top 74%)9016(Top 1445%)
15K9.32 mi3.11 mi22911+2839075+1779075+17722277(Top 78%)8707(Top 71%)8707(Top 1395%)
20K12.43 mi3.11 mi22494+4178861+2148861+21421372(Top 75%)8243(Top 67%)8243(Top 1321%)
Half13.11 mi0.68 mi22437+578833+288833+2821577(Top 76%)8346(Top 68%)8346(Top 1338%)
25K15.53 mi2.42 mi21998+4398603+2308603+23019802(Top 70%)7421(Top 61%)7421(Top 1189%)
30K18.64 mi3.11 mi21416+5828312+2918312+29118769(Top 66%)6994(Top 57%)6994(Top 1121%)
20M20.00 mi1.36 mi21167+2498199+1138199+11318192(Top 64%)6832(Top 56%)6832(Top 1095%)
21M21.00 mi1.00 mi20930+2378087+1128087+11217153(Top 60%)6351(Top 52%)6351(Top 1018%)
35K21.75 mi0.75 mi20792+1388027+608027+6017415(Top 61%)6602(Top 54%)6602(Top 1058%)
23M23.00 mi1.25 mi20519+2737896+1317896+13115527(Top 55%)5629(Top 46%)5629(Top 902%)
24M24.00 mi1.00 mi20327+1927813+837813+8314781(Top 52%)5269(Top 43%)5269(Top 844%)
40K24.85 mi0.85 mi20150+1777745+687745+6814864(Top 52%)5461(Top 45%)5461(Top 875%)
25.2M25.20 mi0.35 mi20067+837708+377708+3714302(Top 50%)5222(Top 43%)5222(Top 837%)
Finish26.22 mi1.02 mi19936+1317650+587650+5816393(Top 58%)6253(Top 51%)6253(Top 1002%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 78%
×21story building
+97ft-345ft

Overall

22277

Females

8707

F60-64

8707

5K→10K

3.1 - 6.2 mi

Top 80%
×5story building
+79ft-138ft

Overall

22790

Females

9016

F60-64

9016

10K→15K

6.2 - 9.3 mi

Top 78%
×3story building
+67ft-78ft

Overall

22277

Females

8707

F60-64

8707

15K→20K

9.3 - 12.4 mi

Top 75%
×5story building
+106ft-86ft

Overall

21372

Females

8243

F60-64

8243

20K→Half

12.4 - 13.1 mi

Top 76%
×2story building
+19ft-37ft

Overall

21577

Females

8346

F60-64

8346

Half→25K

13.1 - 15.5 mi

Top 70%
×4story building
+66ft-88ft

Overall

19802

Females

7421

F60-64

7421

25K→30K

15.5 - 18.6 mi

Top 66%
×9story building
+181ft-148ft

Overall

18769

Females

6994

F60-64

6994

30K→20M

18.6 - 20.0 mi

Top 64%
×5story building
+64ft-50ft

Overall

18192

Females

6832

F60-64

6832

20M→21M

20.0 - 21.0 mi

Top 60%
×8story building
+106ft-24ft

Overall

17153

Females

6351

F60-64

6351

21M→35K

21.0 - 21.8 mi

Top 61%
×7story building
+17ft-86ft

Overall

17415

Females

6602

F60-64

6602

35K→23M

21.8 - 23.0 mi

Top 55%
×5story building
+23ft-63ft

Overall

15527

Females

5629

F60-64

5629

23M→24M

23.0 - 24.0 mi

Top 52%
×6story building
+12ft-82ft

Overall

14781

Females

5269

F60-64

5269

24M→40K

24.0 - 24.9 mi

Top 52%
×1story
+6ft-20ft

Overall

14864

Females

5461

F60-64

5461

40K→25.2M

24.9 - 25.2 mi

Top 50%
×1story
+13ft-16ft

Overall

14302

Females

5222

F60-64

5222

25.2M→Finish

25.2 - 26.2 mi

Top 58%
×2story building
+22ft-21ft

Overall

16393

Females

6253

F60-64

6253

Passing Analysis

Category:
Athletes Passed
3866
Passed By
239
Net Change
+3627
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#23563
5K → 10K46192+369#23563#23194
10K → 15K33653+283#23194#22911
15K → 20K44326+417#22911#22494
20K → Half6912+57#22494#22437
Half → 25K4478+439#22437#21998
25K → 30K59210+582#21998#21416
30K → 20M2534+249#21416#21167
20M → 21M2425+237#21167#20930
21M → 35K1435+138#20930#20792
35K → 23M2752+273#20792#20519
23M → 24M1931+192#20519#20327
24M → 40K1792+177#20327#20150
40K → 25.2M841+83#20150#20067
25.2M → Finish14918+131#20067#19936
TOTALS3866239+3627
📊

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