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BOSTON MARATHON 2025

Jing Lin

Bib: 18668•F

PA

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Masters (Masters Women)
#0 / 6759
Top 47%
Division (F45-49)
#0 / 1813
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
25:45
Rank: #18644
Start → 5K
25:45 | 8:17/mi
10K· 6.21 mi
51:15
Rank: #18292 (+352)
5K → 10K
25:30 | 8:12/mi
15K· 9.32 mi
1:16:47
Rank: #18030 (+262)
10K → 15K
25:32 | 8:13/mi
20K· 12.43 mi
1:42:55
Rank: #17889 (+141)
15K → 20K
26:08 | 8:25/mi
Half· 13.11 mi
1:48:42
Rank: #17933 (-44)
20K → Half
5:47 | 8:29/mi
25K· 15.53 mi
2:09:16
Rank: #17726 (+207)
Half → 25K
20:34 | 8:29/mi
30K· 18.64 mi
2:37:44
Rank: #17853 (-127)
25K → 30K
28:28 | 9:10/mi
20M
2:50:13
Rank: #17851 (+2)
30K → 20M
12:29 | 9:11/mi
21M
3:00:28
Rank: #17985 (-134)
20M → 21M
10:15 | 10:15/mi
35K· 21.75 mi
3:07:16
Rank: #17996 (-11)
21M → 35K
6:48 | 9:05/mi
23M
3:19:05
Rank: #18008 (-12)
35K → 23M
11:49 | 9:26/mi
24M
3:28:15
Rank: #18002 (+6)
23M → 24M
9:10 | 9:10/mi
40K· 24.85 mi
3:36:22
Rank: #18043 (-41)
24M → 40K
8:07 | 9:30/mi
25.2M
3:40:22
Rank: #18172 (-129)
40K → 25.2M
4:00 | 11:36/mi
Finish· 26.22 mi
3:50:23
Rank: #18407 (-235)
25.2M → Finish
10:01 | 9:50/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:48:42
Pace8:17 /mi
2nd Half
Distance13.11 mi
Time2:01:41
Pace9:17 /mi
📊Positive Split: 11.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:16:5825:458:1725:45
8:17
-
10K
6.21 mi11:42:2851:158:1525:30
8:12
-0:05
15K
9.32 mi12:08:001:16:478:1425:32
8:13
+0:01
20K
12.43 mi12:34:081:42:558:1726:08
8:25
+0:12
Half
13.11 mi12:39:551:48:428:175:47
8:29
+0:04
25K
15.53 mi13:00:292:09:168:1920:34
8:29
0:00
30K
18.64 mi13:28:572:37:448:2828:28
9:10
+0:41
20M
20.00 mi13:41:262:50:138:3112:29
9:11
+0:01
21M
21.00 mi13:51:413:00:288:3610:15
10:15
+1:04
35K
21.75 mi13:58:293:07:168:376:48
9:05
-1:10
23M
23.00 mi14:10:183:19:058:3911:49
9:26
+0:21
24M
24.00 mi14:19:283:28:158:419:10
9:10
-0:16
40K
24.85 mi14:27:353:36:228:428:07
9:30
+0:20
25.2M
25.20 mi14:31:353:40:228:454:00
11:36
+2:06
Finish
26.22 mi14:41:363:50:238:4810:01
9:50
-1:46

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

8:12 /mi

Average Pace

8:48 /mi

Slowest Pace

11:36 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:09:16

56% of race

Time at Steady Pace

1:16:51

33% of race

Time at Slower Pace

24:16

11% of race

Average Pace: 8:47 /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 mi11:16:5825:458:1725:45
8:17
#18644
10K
6.21 mi11:42:2851:158:1525:30
8:12
#18292
15K
9.32 mi12:08:001:16:478:1425:32
8:13
#18030
20K
12.43 mi12:34:081:42:558:1726:08
8:25
#17889
Half
13.11 mi12:39:551:48:428:175:47
8:29
#17933
25K
15.53 mi13:00:292:09:168:1920:34
8:29
#17726
30K
18.64 mi13:28:572:37:448:2828:28
9:10
#17853
20M
20.00 mi13:41:262:50:138:3112:29
9:11
#17851
21M
21.00 mi13:51:413:00:288:3610:15
10:15
#17985
35K
21.75 mi13:58:293:07:168:376:48
9:05
#17996
23M
23.00 mi14:10:183:19:058:3911:49
9:26
#18008
24M
24.00 mi14:19:283:28:158:419:10
9:10
#18002
40K
24.85 mi14:27:353:36:228:428:07
9:30
#18043
25.2M
25.20 mi14:31:353:40:228:454:00
11:36
#18172
Finish
26.22 mi14:41:363:50:238:4810:01
9:50
#18407
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF45-49Seg. OverallSeg. FemalesSeg. F45-49
5K3.11 mi3.11 mi186446707670717526(Top 62%)6034(Top 49%)6034(Top 333%)
10K6.21 mi3.10 mi18292+3526502+2056502+20517958(Top 63%)6267(Top 51%)6267(Top 346%)
15K9.32 mi3.11 mi18030+2626352+1506352+15017526(Top 62%)6034(Top 49%)6034(Top 333%)
20K12.43 mi3.11 mi17889+1416271+816271+8117638(Top 62%)6134(Top 50%)6134(Top 338%)
Half13.11 mi0.68 mi17933-446301-306301-3019100(Top 67%)6959(Top 57%)6959(Top 384%)
25K15.53 mi2.42 mi17726+2076192+1096192+10917108(Top 60%)5921(Top 48%)5921(Top 327%)
30K18.64 mi3.11 mi17853-1276320-1286320-12818478(Top 65%)6824(Top 56%)6824(Top 376%)
20M20.00 mi1.36 mi17851+26344-246344-2417745(Top 62%)6557(Top 54%)6557(Top 362%)
21M21.00 mi1.00 mi17985-1346421-776421-7719203(Top 68%)7438(Top 61%)7438(Top 410%)
35K21.75 mi0.75 mi17996-116446-256446-2518681(Top 66%)7289(Top 60%)7289(Top 402%)
23M23.00 mi1.25 mi18008-126499-536499-5318420(Top 65%)7194(Top 59%)7194(Top 397%)
24M24.00 mi1.00 mi18002+66521-226521-2218204(Top 64%)7143(Top 58%)7143(Top 394%)
40K24.85 mi0.85 mi18043-416566-456566-4518697(Top 66%)7473(Top 61%)7473(Top 412%)
25.2M25.20 mi0.35 mi18172-1296656-906656-9022317(Top 79%)9300(Top 76%)9300(Top 513%)
Finish26.22 mi1.02 mi18407-2356808-1526808-15222388(Top 79%)9363(Top 77%)9363(Top 516%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 62%
×21stories
+97ft-345ft

Overall

17526

Females

6034

F45-49

6034

5K→10K

3.1 - 6.2 mi

Top 63%
×5stories
+79ft-138ft

Overall

17958

Females

6267

F45-49

6267

10K→15K

6.2 - 9.3 mi

Top 62%
×3stories
+67ft-78ft

Overall

17526

Females

6034

F45-49

6034

15K→20K

9.3 - 12.4 mi

Top 62%
×5stories
+106ft-86ft

Overall

17638

Females

6134

F45-49

6134

20K→Half

12.4 - 13.1 mi

Top 67%
×2stories
+19ft-37ft

Overall

19100

Females

6959

F45-49

6959

Half→25K

13.1 - 15.5 mi

Top 60%
×4stories
+66ft-88ft

Overall

17108

Females

5921

F45-49

5921

25K→30K

15.5 - 18.6 mi

Top 65%
×9stories
+181ft-148ft

Overall

18478

Females

6824

F45-49

6824

30K→20M

18.6 - 20.0 mi

Top 62%
×5stories
+64ft-50ft

Overall

17745

Females

6557

F45-49

6557

20M→21M

20.0 - 21.0 mi

Top 68%
×8stories
+106ft-24ft

Overall

19203

Females

7438

F45-49

7438

21M→35K

21.0 - 21.8 mi

Top 66%
×7stories
+17ft-86ft

Overall

18681

Females

7289

F45-49

7289

35K→23M

21.8 - 23.0 mi

Top 65%
×5stories
+23ft-63ft

Overall

18420

Females

7194

F45-49

7194

23M→24M

23.0 - 24.0 mi

Top 64%
×6stories
+12ft-82ft

Overall

18204

Females

7143

F45-49

7143

24M→40K

24.0 - 24.9 mi

Top 66%
×1story
+6ft-20ft

Overall

18697

Females

7473

F45-49

7473

40K→25.2M

24.9 - 25.2 mi

Top 79%
×1story
+13ft-16ft

Overall

22317

Females

9300

F45-49

9300

25.2M→Finish

25.2 - 26.2 mi

Top 79%
×2stories
+22ft-21ft

Overall

22388

Females

9363

F45-49

9363

Passing Analysis

Category:
Athletes Passed
2037
Passed By
1800
Net Change
+237
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#18644
5K → 10K484132+352#18644#18292
10K → 15K33674+262#18292#18030
15K → 20K259118+141#18030#17889
20K → Half1963-44#17889#17933
Half → 25K26861+207#17933#17726
25K → 30K181308-127#17726#17853
30K → 20M120118+2#17853#17851
20M → 21M56190-134#17851#17985
21M → 35K5869-11#17985#17996
35K → 23M107119-12#17996#18008
23M → 24M7367+6#18008#18002
24M → 40K5798-41#18002#18043
40K → 25.2M7136-129#18043#18172
25.2M → Finish12247-235#18172#18407
TOTALS20371800+237
📊

Passing Visuals

Category:
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🔥Passing Intensity

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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