Boston Marathon logo
BOSTON MARATHON 2025

Michelle Kubicki

Bib: 21341•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
Top 49%
Division (F45-49)
#0 / 1813
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
8:57/mi
27:49
↑ 97↓ 3451.5%
10K· 6.21 mi
8:35/mi
54:29
↑ 79↓ 1380.4%
15K· 9.32 mi
8:35/mi
1:21:08
↑ 67↓ 78
20K· 12.43 mi
8:36/mi
1:47:51
↑ 106↓ 860.1%
Half· 13.11 mi
8:30/mi
1:53:39
↑ 19↓ 370.5%
25K· 15.53 mi
8:43/mi
2:14:46
↑ 66↓ 880.2%
30K· 18.64 mi
8:52/mi
2:42:19
↑ 181↓ 1480.2%
20M
9:05/mi
2:54:40
↑ 64↓ 500.2%
21M
9:19/mi
3:03:59
↑ 106↓ 241.6%
35K· 21.75 mi
8:37/mi
3:10:26
↑ 17↓ 861.7%
23M
9:49/mi
3:22:43
↑ 23↓ 630.6%
24M
9:11/mi
3:31:54
↓ 821.3%
40K· 24.85 mi
10:07/mi
3:40:33
↓ 200.3%
25.2M
9:34/mi
3:43:51
↑ 13↓ 160.2%
Finish· 26.22 mi
8:12/mi
3:52:12
↑ 22↓ 21

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
Time1:53:39
Pace8:40 /mi
2nd Half
Distance13.11 mi
Time1:58:33
Pace9:03 /mi
📊Positive Split: 4.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:20:3727:498:5727:49
8:57
-
10K
6.21 mi11:47:1754:298:4626:40
8:35
-0:22
15K
9.32 mi12:13:561:21:088:4226:39
8:35
0:00
20K
12.43 mi12:40:391:47:518:4126:43
8:36
+0:01
Half
13.11 mi12:46:271:53:398:405:48
8:30
-0:06
25K
15.53 mi13:07:342:14:468:4121:07
8:43
+0:13
30K
18.64 mi13:35:072:42:198:4227:33
8:52
+0:09
20M
20.00 mi13:47:282:54:408:4412:21
9:05
+0:13
21M
21.00 mi13:56:473:03:598:469:19
9:19
+0:14
35K
21.75 mi14:03:143:10:268:456:27
8:37
-0:42
23M
23.00 mi14:15:313:22:438:4912:17
9:49
+1:12
24M
24.00 mi14:24:423:31:548:509:11
9:11
-0:38
40K
24.85 mi14:33:213:40:338:528:39
10:07
+0:56
25.2M
25.20 mi14:36:393:43:518:533:18
9:34
-0:33
Finish
26.22 mi14:45:003:52:128:528:21
8:12
-1:22

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

8:52 /mi

Slowest Pace

10:07 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:34:11

41% of race

Time at Steady Pace

1:35:17

41% of race

Time at Slower Pace

42:44

18% of race

Average Pace: 8:51 /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 mi11:20:3727:498:5727:49
8:57
#22220
10K
6.21 mi11:47:1754:298:4626:40
8:35
#21272
15K
9.32 mi12:13:561:21:088:4226:39
8:35
#20774
20K
12.43 mi12:40:391:47:518:4126:43
8:36
#20287
Half
13.11 mi12:46:271:53:398:405:48
8:30
#20237
25K
15.53 mi13:07:342:14:468:4121:07
8:43
#19920
30K
18.64 mi13:35:072:42:198:4227:33
8:52
#19362
20M
20.00 mi13:47:282:54:408:4412:21
9:05
#19189
21M
21.00 mi13:56:473:03:598:469:19
9:19
#18965
35K
21.75 mi14:03:143:10:268:456:27
8:37
#18863
23M
23.00 mi14:15:313:22:438:4912:17
9:49
#18954
24M
24.00 mi14:24:423:31:548:509:11
9:11
#18932
40K
24.85 mi14:33:213:40:338:528:39
10:07
#19004
25.2M
25.20 mi14:36:393:43:518:533:18
9:34
#18945
Finish
26.22 mi14:45:003:52:128:528:21
8:12
#18783
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF45-49Seg. OverallSeg. FemalesSeg. F45-49
5K3.11 mi3.11 mi222208748874819798(Top 70%)7331(Top 60%)7331(Top 404%)
10K6.21 mi3.10 mi21272+9488198+5508198+55020272(Top 71%)7618(Top 62%)7618(Top 420%)
15K9.32 mi3.11 mi20774+4987910+2887910+28819798(Top 70%)7331(Top 60%)7331(Top 404%)
20K12.43 mi3.11 mi20287+4877639+2717639+27118851(Top 66%)6824(Top 56%)6824(Top 376%)
Half13.11 mi0.68 mi20237+507618+217618+2119262(Top 68%)7053(Top 58%)7053(Top 389%)
25K15.53 mi2.42 mi19920+3177435+1837435+18318467(Top 65%)6690(Top 55%)6690(Top 369%)
30K18.64 mi3.11 mi19362+5587166+2697166+26917001(Top 60%)6032(Top 49%)6032(Top 333%)
20M20.00 mi1.36 mi19189+1737088+787088+7817275(Top 61%)6299(Top 52%)6299(Top 347%)
21M21.00 mi1.00 mi18965+2246989+996989+9915278(Top 54%)5342(Top 44%)5342(Top 295%)
35K21.75 mi0.75 mi18863+1026947+426947+4216245(Top 57%)5930(Top 48%)5930(Top 327%)
23M23.00 mi1.25 mi18954-917025-787025-7819833(Top 70%)7959(Top 65%)7959(Top 439%)
24M24.00 mi1.00 mi18932+227036-117036-1118289(Top 64%)7191(Top 59%)7191(Top 397%)
40K24.85 mi0.85 mi19004-727102-667102-6620839(Top 73%)8574(Top 70%)8574(Top 473%)
25.2M25.20 mi0.35 mi18945+597079+237079+2315047(Top 53%)5594(Top 46%)5594(Top 309%)
Finish26.22 mi1.02 mi18783+1627010+697010+6914276(Top 50%)5100(Top 42%)5100(Top 281%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 70%
×21story building
+97ft-345ft

Overall

19798

Females

7331

F45-49

7331

5K→10K

3.1 - 6.2 mi

Top 71%
×5story building
+79ft-138ft

Overall

20272

Females

7618

F45-49

7618

10K→15K

6.2 - 9.3 mi

Top 70%
×3story building
+67ft-78ft

Overall

19798

Females

7331

F45-49

7331

15K→20K

9.3 - 12.4 mi

Top 66%
×5story building
+106ft-86ft

Overall

18851

Females

6824

F45-49

6824

20K→Half

12.4 - 13.1 mi

Top 68%
×2story building
+19ft-37ft

Overall

19262

Females

7053

F45-49

7053

Half→25K

13.1 - 15.5 mi

Top 65%
×4story building
+66ft-88ft

Overall

18467

Females

6690

F45-49

6690

25K→30K

15.5 - 18.6 mi

Top 60%
×9story building
+181ft-148ft

Overall

17001

Females

6032

F45-49

6032

30K→20M

18.6 - 20.0 mi

Top 61%
×5story building
+64ft-50ft

Overall

17275

Females

6299

F45-49

6299

20M→21M

20.0 - 21.0 mi

Top 54%
×8story building
+106ft-24ft

Overall

15278

Females

5342

F45-49

5342

21M→35K

21.0 - 21.8 mi

Top 57%
×7story building
+17ft-86ft

Overall

16245

Females

5930

F45-49

5930

35K→23M

21.8 - 23.0 mi

Top 70%
×5story building
+23ft-63ft

Overall

19833

Females

7959

F45-49

7959

23M→24M

23.0 - 24.0 mi

Top 64%
×6story building
+12ft-82ft

Overall

18289

Females

7191

F45-49

7191

24M→40K

24.0 - 24.9 mi

Top 73%
×1story
+6ft-20ft

Overall

20839

Females

8574

F45-49

8574

40K→25.2M

24.9 - 25.2 mi

Top 53%
×1story
+13ft-16ft

Overall

15047

Females

5594

F45-49

5594

25.2M→Finish

25.2 - 26.2 mi

Top 50%
×2story building
+22ft-21ft

Overall

14276

Females

5100

F45-49

5100

Passing Analysis

Category:
Athletes Passed
3980
Passed By
543
Net Change
+3437
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#22220
5K → 10K98436+948#22220#21272
10K → 15K53133+498#21272#20774
15K → 20K50518+487#20774#20287
20K → Half588+50#20287#20237
Half → 25K34730+317#20237#19920
25K → 30K57214+558#19920#19362
30K → 20M20229+173#19362#19189
20M → 21M23612+224#19189#18965
21M → 35K1086+102#18965#18863
35K → 23M73164-91#18863#18954
23M → 24M7755+22#18954#18932
24M → 40K55127-72#18932#19004
40K → 25.2M623+59#19004#18945
25.2M → Finish1708+162#18945#18783
TOTALS3980543+3437
📊

Passing Visuals

Category:
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

Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing