Boston Marathon logo
BOSTON MARATHON 2025

Alice Tirbooman

Bib: 13874•F

0:00
0:00
/ mi
Be the first to cheer!
Overall
#0 / 28404
Top 41%
Gender (Female)
#0 / 12228
Top 25%
Division (F18-39)
#0 / 5469
Top 42%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
23:19
Rank: #12305
Start → 5K
23:19 | 7:30/mi
10K· 6.21 mi
46:14
Rank: #11630 (+675)
5K → 10K
22:55 | 7:23/mi
15K· 9.32 mi
1:09:12
Rank: #11299 (+331)
10K → 15K
22:58 | 7:24/mi
20K· 12.43 mi
1:32:37
Rank: #11256 (+43)
15K → 20K
23:25 | 7:32/mi
Half· 13.11 mi
1:37:40
Rank: #11227 (+29)
20K → Half
5:03 | 7:24/mi
25K· 15.53 mi
1:56:09
Rank: #11155 (+72)
Half → 25K
18:29 | 7:37/mi
30K· 18.64 mi
2:21:53
Rank: #11518 (-363)
25K → 30K
25:44 | 8:17/mi
20M
2:32:52
Rank: #11429 (+89)
30K → 20M
10:59 | 8:05/mi
21M
2:41:27
Rank: #11362 (+67)
20M → 21M
8:35 | 8:35/mi
35K· 21.75 mi
2:47:30
Rank: #11420 (-58)
21M → 35K
6:03 | 8:05/mi
23M
2:57:58
Rank: #11463 (-43)
35K → 23M
10:28 | 8:22/mi
24M
3:06:24
Rank: #11568 (-105)
23M → 24M
8:26 | 8:26/mi
40K· 24.85 mi
3:13:35
Rank: #11595 (-27)
24M → 40K
7:11 | 8:24/mi
25.2M
3:16:48
Rank: #11628 (-33)
40K → 25.2M
3:13 | 9:20/mi
Finish· 26.22 mi
3:24:50
Rank: #11631 (-3)
25.2M → Finish
8:02 | 7:53/mi

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
Time1:37:40
Pace7:27 /mi
2nd Half
Distance13.11 mi
Time1:47:10
Pace8:11 /mi
📊Positive Split: 9.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:52:1523:197:3023:19
7:30
-
10K
6.21 mi11:15:1046:147:2622:55
7:23
-0:07
15K
9.32 mi11:38:081:09:127:2522:58
7:24
+0:01
20K
12.43 mi12:01:331:32:377:2723:25
7:32
+0:08
Half
13.11 mi12:06:361:37:407:275:03
7:24
-0:08
25K
15.53 mi12:25:051:56:097:2918:29
7:37
+0:13
30K
18.64 mi12:50:492:21:537:3725:44
8:17
+0:40
20M
20.00 mi13:01:482:32:527:3910:59
8:05
-0:12
21M
21.00 mi13:10:232:41:277:418:35
8:35
+0:30
35K
21.75 mi13:16:262:47:307:426:03
8:05
-0:30
23M
23.00 mi13:26:542:57:587:4410:28
8:22
+0:17
24M
24.00 mi13:35:203:06:247:468:26
8:26
+0:04
40K
24.85 mi13:42:313:13:357:477:11
8:24
-0:02
25.2M
25.20 mi13:45:443:16:487:493:13
9:20
+0:56
Finish
26.22 mi13:53:463:24:507:498:02
7:53
-1:27

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

7:23 /mi

Average Pace

7:49 /mi

Slowest Pace

9:20 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:56:09

57% of race

Time at Steady Pace

50:48

25% of race

Time at Slower Pace

37:53

18% of race

Average Pace: 7:49 /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 mi10:52:1523:197:3023:19
7:30
#12305
10K
6.21 mi11:15:1046:147:2622:55
7:23
#11630
15K
9.32 mi11:38:081:09:127:2522:58
7:24
#11299
20K
12.43 mi12:01:331:32:377:2723:25
7:32
#11256
Half
13.11 mi12:06:361:37:407:275:03
7:24
#11227
25K
15.53 mi12:25:051:56:097:2918:29
7:37
#11155
30K
18.64 mi12:50:492:21:537:3725:44
8:17
#11518
20M
20.00 mi13:01:482:32:527:3910:59
8:05
#11429
21M
21.00 mi13:10:232:41:277:418:35
8:35
#11362
35K
21.75 mi13:16:262:47:307:426:03
8:05
#11420
23M
23.00 mi13:26:542:57:587:4410:28
8:22
#11463
24M
24.00 mi13:35:203:06:247:468:26
8:26
#11568
40K
24.85 mi13:42:313:13:357:477:11
8:24
#11595
25.2M
25.20 mi13:45:443:16:487:493:13
9:20
#11628
Finish
26.22 mi13:53:463:24:507:498:02
7:53
#11631
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi123052966296610826(Top 38%)2289(Top 19%)2289(Top 42%)
10K6.21 mi3.10 mi11630+6752615+3512615+35110989(Top 39%)2300(Top 19%)2300(Top 42%)
15K9.32 mi3.11 mi11299+3312474+1412474+14110826(Top 38%)2289(Top 19%)2289(Top 42%)
20K12.43 mi3.11 mi11256+432484-102484-1011090(Top 39%)2521(Top 21%)2521(Top 46%)
Half13.11 mi0.68 mi11227+292467+172467+1710990(Top 39%)2432(Top 20%)2432(Top 44%)
25K15.53 mi2.42 mi11155+722472-52472-510965(Top 39%)2570(Top 21%)2570(Top 47%)
30K18.64 mi3.11 mi11518-3632744-2722744-27213382(Top 47%)4040(Top 33%)4040(Top 74%)
20M20.00 mi1.36 mi11429+892738+62738+610999(Top 39%)2940(Top 24%)2940(Top 54%)
21M21.00 mi1.00 mi11362+672739-12739-111005(Top 39%)3100(Top 25%)3100(Top 57%)
35K21.75 mi0.75 mi11420-582799-602799-6012844(Top 45%)4063(Top 33%)4063(Top 74%)
23M23.00 mi1.25 mi11463-432867-682867-6812432(Top 44%)3962(Top 32%)3962(Top 72%)
24M24.00 mi1.00 mi11568-1052951-842951-8414102(Top 50%)4868(Top 40%)4868(Top 89%)
40K24.85 mi0.85 mi11595-272996-452996-4512814(Top 45%)4334(Top 35%)4334(Top 79%)
25.2M25.20 mi0.35 mi11628-333024-283024-2813621(Top 48%)4801(Top 39%)4801(Top 88%)
Finish26.22 mi1.02 mi11631-33071-473071-4712074(Top 43%)3962(Top 32%)3962(Top 72%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 38%
×21stories
+97ft-345ft

Overall

10826

Females

2289

F18-39

2289

5K→10K

3.1 - 6.2 mi

Top 39%
×5stories
+79ft-138ft

Overall

10989

Females

2300

F18-39

2300

10K→15K

6.2 - 9.3 mi

Top 38%
×3stories
+67ft-78ft

Overall

10826

Females

2289

F18-39

2289

15K→20K

9.3 - 12.4 mi

Top 39%
×5stories
+106ft-86ft

Overall

11090

Females

2521

F18-39

2521

20K→Half

12.4 - 13.1 mi

Top 39%
×2stories
+19ft-37ft

Overall

10990

Females

2432

F18-39

2432

Half→25K

13.1 - 15.5 mi

Top 39%
×4stories
+66ft-88ft

Overall

10965

Females

2570

F18-39

2570

25K→30K

15.5 - 18.6 mi

Top 47%
×9stories
+181ft-148ft

Overall

13382

Females

4040

F18-39

4040

30K→20M

18.6 - 20.0 mi

Top 39%
×5stories
+64ft-50ft

Overall

10999

Females

2940

F18-39

2940

20M→21M

20.0 - 21.0 mi

Top 39%
×8stories
+106ft-24ft

Overall

11005

Females

3100

F18-39

3100

21M→35K

21.0 - 21.8 mi

Top 45%
×7stories
+17ft-86ft

Overall

12844

Females

4063

F18-39

4063

35K→23M

21.8 - 23.0 mi

Top 44%
×5stories
+23ft-63ft

Overall

12432

Females

3962

F18-39

3962

23M→24M

23.0 - 24.0 mi

Top 50%
×6stories
+12ft-82ft

Overall

14102

Females

4868

F18-39

4868

24M→40K

24.0 - 24.9 mi

Top 45%
×1story
+6ft-20ft

Overall

12814

Females

4334

F18-39

4334

40K→25.2M

24.9 - 25.2 mi

Top 48%
×1story
+13ft-16ft

Overall

13621

Females

4801

F18-39

4801

25.2M→Finish

25.2 - 26.2 mi

Top 43%
×2stories
+22ft-21ft

Overall

12074

Females

3962

F18-39

3962

Passing Analysis

Category:
Athletes Passed
2349
Passed By
1675
Net Change
+674
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#12305
5K → 10K73358+675#12305#11630
10K → 15K37746+331#11630#11299
15K → 20K196153+43#11299#11256
20K → Half4819+29#11256#11227
Half → 25K194122+72#11227#11155
25K → 30K128491-363#11155#11518
30K → 20M16172+89#11518#11429
20M → 21M12356+67#11429#11362
21M → 35K46104-58#11362#11420
35K → 23M94137-43#11420#11463
23M → 24M64169-105#11463#11568
24M → 40K7299-27#11568#11595
40K → 25.2M2356-33#11595#11628
25.2M → Finish9093-3#11628#11631
TOTALS23491675+674
📊

Passing Visuals

Category:
Loading...

🔥Passing Intensity

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
Share Feedback

Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing