Boston Marathon logo
BOSTON MARATHON 2025

Josse Tobiasson

Bib: 20483•F

UT

0:00
0:00
/ mi
Masters
Be the first to cheer!
Overall
#0 / 28404
Gender (Female)
#0 / 12228
Masters (Masters Women)
#0 / 6759
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
8:39/mi
26:53
↑ 97↓ 3451.5%
10K· 6.21 mi
8:52/mi
54:26
↑ 79↓ 1380.4%
15K· 9.32 mi
9:04/mi
1:22:35
↑ 67↓ 78
20K· 12.43 mi
9:27/mi
1:51:58
↑ 106↓ 860.1%
Half· 13.11 mi
9:05/mi
1:58:10
↑ 19↓ 370.5%
25K· 15.53 mi
9:45/mi
2:21:49
↑ 66↓ 880.2%
30K· 18.64 mi
10:21/mi
2:53:58
↑ 181↓ 1480.2%
20M
10:31/mi
3:08:15
↑ 64↓ 500.2%
21M
11:25/mi
3:19:40
↑ 106↓ 241.6%
35K· 21.75 mi
9:47/mi
3:26:59
↑ 17↓ 861.7%
23M
10:02/mi
3:39:33
↑ 23↓ 630.6%
24M
10:17/mi
3:49:50
↓ 821.3%
40K· 24.85 mi
10:22/mi
3:58:42
↓ 200.3%
25.2M
11:53/mi
4:02:48
↑ 13↓ 160.2%
Finish· 26.22 mi
10:24/mi
4:13:24
↑ 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
Time1:58:10
Pace9:01 /mi
2nd Half
Distance13.11 mi
Time2:15:14
Pace10:19 /mi
📊Positive Split: 14.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:19:5726:538:3926:53
8:39
-
10K
6.21 mi11:47:3054:268:4627:33
8:52
+0:13
15K
9.32 mi12:15:391:22:358:5228:09
9:04
+0:12
20K
12.43 mi12:45:021:51:589:0129:23
9:27
+0:23
Half
13.11 mi12:51:141:58:109:016:12
9:05
-0:22
25K
15.53 mi13:14:532:21:499:0823:39
9:45
+0:40
30K
18.64 mi13:47:022:53:589:2032:09
10:21
+0:36
20M
20.00 mi14:01:193:08:159:2514:17
10:31
+0:10
21M
21.00 mi14:12:443:19:409:3011:25
11:25
+0:54
35K
21.75 mi14:20:033:26:599:317:19
9:47
-1:38
23M
23.00 mi14:32:373:39:339:3312:34
10:02
+0:15
24M
24.00 mi14:42:543:49:509:3510:17
10:17
+0:15
40K
24.85 mi14:51:463:58:429:368:52
10:22
+0:05
25.2M
25.20 mi14:55:524:02:489:384:06
11:53
+1:31
Finish
26.22 mi15:06:284:13:249:4010:36
10:24
-1:29

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

8:39 /mi

Average Pace

9:40 /mi

Slowest Pace

11:53 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:58:10

47% of race

Time at Steady Pace

1:45:26

42% of race

Time at Slower Pace

29:48

12% of race

Average Pace: 9:40 /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 mi11:19:5726:538:3926:53
8:39
#20773
10K
6.21 mi11:47:3054:268:4627:33
8:52
#21231
15K
9.32 mi12:15:391:22:358:5228:09
9:04
#21591
20K
12.43 mi12:45:021:51:589:0129:23
9:27
#21984
Half
13.11 mi12:51:141:58:109:016:12
9:05
#21993
25K
15.53 mi13:14:532:21:499:0823:39
9:45
#22150
30K
18.64 mi13:47:022:53:589:2032:09
10:21
#22279
20M
20.00 mi14:01:193:08:159:2514:17
10:31
#22292
21M
21.00 mi14:12:443:19:409:3011:25
11:25
#22280
35K
21.75 mi14:20:033:26:599:317:19
9:47
#22234
23M
23.00 mi14:32:373:39:339:3312:34
10:02
#22112
24M
24.00 mi14:42:543:49:509:3510:17
10:17
#22109
40K
24.85 mi14:51:463:58:429:368:52
10:22
#22091
25.2M
25.20 mi14:55:524:02:489:384:06
11:53
#22103
Finish
26.22 mi15:06:284:13:249:4010:36
10:24
#22167
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF45-49Seg. OverallSeg. FemalesSeg. F45-49
5K3.11 mi3.11 mi207737958795822304(Top 79%)8727(Top 71%)8727(Top 481%)
10K6.21 mi3.10 mi21231-4588177-2198177-21921746(Top 77%)8450(Top 69%)8450(Top 466%)
15K9.32 mi3.11 mi21591-3608358-1818358-18122304(Top 79%)8727(Top 71%)8727(Top 481%)
20K12.43 mi3.11 mi21984-3938592-2348592-23422770(Top 80%)9018(Top 74%)9018(Top 497%)
Half13.11 mi0.68 mi21993-98594-28594-222209(Top 78%)8726(Top 71%)8726(Top 481%)
25K15.53 mi2.42 mi22150-1578686-928686-9222656(Top 80%)9010(Top 74%)9010(Top 497%)
30K18.64 mi3.11 mi22279-1298784-988784-9822590(Top 80%)9099(Top 74%)9099(Top 502%)
20M20.00 mi1.36 mi22292-138814-308814-3022462(Top 79%)9137(Top 75%)9137(Top 504%)
21M21.00 mi1.00 mi22280+128822-88822-822441(Top 79%)9212(Top 75%)9212(Top 508%)
35K21.75 mi0.75 mi22234+468812+108812+1021295(Top 75%)8669(Top 71%)8669(Top 478%)
23M23.00 mi1.25 mi22112+1228779+338779+3320626(Top 73%)8370(Top 68%)8370(Top 462%)
24M24.00 mi1.00 mi22109+38796-178796-1722205(Top 78%)9238(Top 76%)9238(Top 510%)
40K24.85 mi0.85 mi22091+188809-138809-1321587(Top 76%)8979(Top 73%)8979(Top 495%)
25.2M25.20 mi0.35 mi22103-128824-158824-1523017(Top 81%)9660(Top 79%)9660(Top 533%)
Finish26.22 mi1.02 mi22167-648874-508874-5024059(Top 85%)10194(Top 83%)10194(Top 562%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 79%
×21story building
+97ft-345ft

Overall

22304

Females

8727

F45-49

8727

5K→10K

3.1 - 6.2 mi

Top 77%
×5story building
+79ft-138ft

Overall

21746

Females

8450

F45-49

8450

10K→15K

6.2 - 9.3 mi

Top 79%
×3story building
+67ft-78ft

Overall

22304

Females

8727

F45-49

8727

15K→20K

9.3 - 12.4 mi

Top 80%
×5story building
+106ft-86ft

Overall

22770

Females

9018

F45-49

9018

20K→Half

12.4 - 13.1 mi

Top 78%
×2story building
+19ft-37ft

Overall

22209

Females

8726

F45-49

8726

Half→25K

13.1 - 15.5 mi

Top 80%
×4story building
+66ft-88ft

Overall

22656

Females

9010

F45-49

9010

25K→30K

15.5 - 18.6 mi

Top 80%
×9story building
+181ft-148ft

Overall

22590

Females

9099

F45-49

9099

30K→20M

18.6 - 20.0 mi

Top 79%
×5story building
+64ft-50ft

Overall

22462

Females

9137

F45-49

9137

20M→21M

20.0 - 21.0 mi

Top 79%
×8story building
+106ft-24ft

Overall

22441

Females

9212

F45-49

9212

21M→35K

21.0 - 21.8 mi

Top 75%
×7story building
+17ft-86ft

Overall

21295

Females

8669

F45-49

8669

35K→23M

21.8 - 23.0 mi

Top 73%
×5story building
+23ft-63ft

Overall

20626

Females

8370

F45-49

8370

23M→24M

23.0 - 24.0 mi

Top 78%
×6story building
+12ft-82ft

Overall

22205

Females

9238

F45-49

9238

24M→40K

24.0 - 24.9 mi

Top 76%
×1story
+6ft-20ft

Overall

21587

Females

8979

F45-49

8979

40K→25.2M

24.9 - 25.2 mi

Top 81%
×1story
+13ft-16ft

Overall

23017

Females

9660

F45-49

9660

25.2M→Finish

25.2 - 26.2 mi

Top 85%
×2story building
+22ft-21ft

Overall

24059

Females

10194

F45-49

10194

Passing Analysis

Category:
Athletes Passed
1098
Passed By
2492
Net Change
-1394
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#20773
5K → 10K106564-458#20773#21231
10K → 15K103463-360#21231#21591
15K → 20K93486-393#21591#21984
20K → Half3241-9#21984#21993
Half → 25K97254-157#21993#22150
25K → 30K150279-129#22150#22279
30K → 20M6881-13#22279#22292
20M → 21M8775+12#22292#22280
21M → 35K6620+46#22280#22234
35K → 23M14220+122#22234#22112
23M → 24M4542+3#22112#22109
24M → 40K5941+18#22109#22091
40K → 25.2M1931-12#22091#22103
25.2M → Finish3195-64#22103#22167
TOTALS10982492-1394
📊

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