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BOSTON MARATHON 2025

Kristine Thanh

Bib: 20211•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 (F40-44)
#0 / 1718
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
25:29
Rank: #18129
Start → 5K
25:29 | 8:12/mi
10K· 6.21 mi
51:15
Rank: #18289 (-160)
5K → 10K
25:46 | 8:18/mi
15K· 9.32 mi
1:16:49
Rank: #18047 (+242)
10K → 15K
25:34 | 8:14/mi
20K· 12.43 mi
1:43:16
Rank: #18055 (-8)
15K → 20K
26:27 | 8:31/mi
Half· 13.11 mi
1:48:48
Rank: #17979 (+76)
20K → Half
5:32 | 8:07/mi
25K· 15.53 mi
2:09:34
Rank: #17867 (+112)
Half → 25K
20:46 | 8:34/mi
30K· 18.64 mi
2:37:41
Rank: #17836 (+31)
25K → 30K
28:07 | 9:03/mi
20M
2:50:19
Rank: #17881 (-45)
30K → 20M
12:38 | 9:18/mi
21M
3:00:34
Rank: #18009 (-128)
20M → 21M
10:15 | 10:15/mi
35K· 21.75 mi
3:07:02
Rank: #17934 (+75)
21M → 35K
6:28 | 8:39/mi
23M
3:18:38
Rank: #17893 (+41)
35K → 23M
11:36 | 9:16/mi
24M
3:27:14
Rank: #17734 (+159)
23M → 24M
8:36 | 8:36/mi
40K· 24.85 mi
3:34:53
Rank: #17677 (+57)
24M → 40K
7:39 | 8:57/mi
25.2M
3:38:23
Rank: #17668 (+9)
40K → 25.2M
3:30 | 10:09/mi
Finish· 26.22 mi
3:47:34
Rank: #17740 (-72)
25.2M → Finish
9:11 | 9:01/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:48:48
Pace8:18 /mi
2nd Half
Distance13.11 mi
Time1:58:46
Pace9:04 /mi
📊Positive Split: 9.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:18:0125:298:1225:29
8:12
-
10K
6.21 mi11:43:4751:158:1525:46
8:18
+0:06
15K
9.32 mi12:09:211:16:498:1425:34
8:14
-0:04
20K
12.43 mi12:35:481:43:168:1926:27
8:31
+0:17
Half
13.11 mi12:41:201:48:488:185:32
8:07
-0:24
25K
15.53 mi13:02:062:09:348:2020:46
8:34
+0:27
30K
18.64 mi13:30:132:37:418:2828:07
9:03
+0:29
20M
20.00 mi13:42:512:50:198:3112:38
9:18
+0:15
21M
21.00 mi13:53:063:00:348:3610:15
10:15
+0:57
35K
21.75 mi13:59:343:07:028:366:28
8:39
-1:36
23M
23.00 mi14:11:103:18:388:3811:36
9:16
+0:37
24M
24.00 mi14:19:463:27:148:388:36
8:36
-0:40
40K
24.85 mi14:27:253:34:538:397:39
8:57
+0:21
25.2M
25.20 mi14:30:553:38:238:403:30
10:09
+1:12
Finish
26.22 mi14:40:063:47:348:419:11
9:01
-1:08

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

8:07 /mi

Average Pace

8:41 /mi

Slowest Pace

10:15 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:22:21

36% of race

Time at Steady Pace

1:09:56

31% of race

Time at Slower Pace

1:15:17

33% of race

Average Pace: 8:41 /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 mi11:18:0125:298:1225:29
8:12
#18129
10K
6.21 mi11:43:4751:158:1525:46
8:18
#18289
15K
9.32 mi12:09:211:16:498:1425:34
8:14
#18047
20K
12.43 mi12:35:481:43:168:1926:27
8:31
#18055
Half
13.11 mi12:41:201:48:488:185:32
8:07
#17979
25K
15.53 mi13:02:062:09:348:2020:46
8:34
#17867
30K
18.64 mi13:30:132:37:418:2828:07
9:03
#17836
20M
20.00 mi13:42:512:50:198:3112:38
9:18
#17881
21M
21.00 mi13:53:063:00:348:3610:15
10:15
#18009
35K
21.75 mi13:59:343:07:028:366:28
8:39
#17934
23M
23.00 mi14:11:103:18:388:3811:36
9:16
#17893
24M
24.00 mi14:19:463:27:148:388:36
8:36
#17734
40K
24.85 mi14:27:253:34:538:397:39
8:57
#17677
25.2M
25.20 mi14:30:553:38:238:403:30
10:09
#17668
Finish
26.22 mi14:40:063:47:348:419:11
9:01
#17740
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF40-44Seg. OverallSeg. FemalesSeg. F40-44
5K3.11 mi3.11 mi181296424642417593(Top 62%)6073(Top 50%)6073(Top 353%)
10K6.21 mi3.10 mi18289-1606499-756499-7518517(Top 65%)6610(Top 54%)6610(Top 385%)
15K9.32 mi3.11 mi18047+2426362+1376362+13717593(Top 62%)6073(Top 50%)6073(Top 353%)
20K12.43 mi3.11 mi18055-86363-16363-118347(Top 65%)6535(Top 53%)6535(Top 380%)
Half13.11 mi0.68 mi17979+766325+386325+3816767(Top 59%)5642(Top 46%)5642(Top 328%)
25K15.53 mi2.42 mi17867+1126280+456280+4517594(Top 62%)6189(Top 51%)6189(Top 360%)
30K18.64 mi3.11 mi17836+316310-306310-3017939(Top 63%)6546(Top 54%)6546(Top 381%)
20M20.00 mi1.36 mi17881-456356-466356-4618293(Top 64%)6884(Top 56%)6884(Top 401%)
21M21.00 mi1.00 mi18009-1286437-816437-8119200(Top 68%)7435(Top 61%)7435(Top 433%)
35K21.75 mi0.75 mi17934+756403+346403+3416382(Top 58%)6002(Top 49%)6002(Top 349%)
23M23.00 mi1.25 mi17893+416435-326435-3217636(Top 62%)6808(Top 56%)6808(Top 396%)
24M24.00 mi1.00 mi17734+1596387+486387+4815203(Top 54%)5501(Top 45%)5501(Top 320%)
40K24.85 mi0.85 mi17677+576378+96378+916029(Top 56%)6056(Top 50%)6056(Top 353%)
25.2M25.20 mi0.35 mi17668+96380-26380-217722(Top 62%)6974(Top 57%)6974(Top 406%)
Finish26.22 mi1.02 mi17740-726432-526432-5219125(Top 67%)7675(Top 63%)7675(Top 447%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 62%
×21stories
+97ft-345ft

Overall

17593

Females

6073

F40-44

6073

5K→10K

3.1 - 6.2 mi

Top 65%
×5stories
+79ft-138ft

Overall

18517

Females

6610

F40-44

6610

10K→15K

6.2 - 9.3 mi

Top 62%
×3stories
+67ft-78ft

Overall

17593

Females

6073

F40-44

6073

15K→20K

9.3 - 12.4 mi

Top 65%
×5stories
+106ft-86ft

Overall

18347

Females

6535

F40-44

6535

20K→Half

12.4 - 13.1 mi

Top 59%
×2stories
+19ft-37ft

Overall

16767

Females

5642

F40-44

5642

Half→25K

13.1 - 15.5 mi

Top 62%
×4stories
+66ft-88ft

Overall

17594

Females

6189

F40-44

6189

25K→30K

15.5 - 18.6 mi

Top 63%
×9stories
+181ft-148ft

Overall

17939

Females

6546

F40-44

6546

30K→20M

18.6 - 20.0 mi

Top 64%
×5stories
+64ft-50ft

Overall

18293

Females

6884

F40-44

6884

20M→21M

20.0 - 21.0 mi

Top 68%
×8stories
+106ft-24ft

Overall

19200

Females

7435

F40-44

7435

21M→35K

21.0 - 21.8 mi

Top 58%
×7stories
+17ft-86ft

Overall

16382

Females

6002

F40-44

6002

35K→23M

21.8 - 23.0 mi

Top 62%
×5stories
+23ft-63ft

Overall

17636

Females

6808

F40-44

6808

23M→24M

23.0 - 24.0 mi

Top 54%
×6stories
+12ft-82ft

Overall

15203

Females

5501

F40-44

5501

24M→40K

24.0 - 24.9 mi

Top 56%
×1story
+6ft-20ft

Overall

16029

Females

6056

F40-44

6056

40K→25.2M

24.9 - 25.2 mi

Top 62%
×1story
+13ft-16ft

Overall

17722

Females

6974

F40-44

6974

25.2M→Finish

25.2 - 26.2 mi

Top 67%
×2stories
+22ft-21ft

Overall

19125

Females

7675

F40-44

7675

Passing Analysis

Category:
Athletes Passed
1986
Passed By
1597
Net Change
+389
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#18129
5K → 10K206366-160#18129#18289
10K → 15K32280+242#18289#18047
15K → 20K185193-8#18047#18055
20K → Half804+76#18055#17979
Half → 25K215103+112#17979#17867
25K → 30K247216+31#17867#17836
30K → 20M109154-45#17836#17881
20M → 21M57185-128#17881#18009
21M → 35K9520+75#18009#17934
35K → 23M12685+41#17934#17893
23M → 24M17516+159#17893#17734
24M → 40K8932+57#17734#17677
40K → 25.2M3728+9#17677#17668
25.2M → Finish43115-72#17668#17740
TOTALS19861597+389
📊

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