Boston Marathon logo
BOSTON MARATHON 2025

Tara Bozzini

Bib: 3206•F

MA

0:00
0:00
/ mi
Be the first to cheer!
Overall
#0 / 28404
Top 12%
Gender (Female)
#0 / 12228
Top 2%
Division (F18-39)
#0 / 5469
Top 4%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
20:34
Rank: #4787
Start → 5K
20:34 | 6:37/mi
10K· 6.21 mi
40:48
Rank: #4250 (+537)
5K → 10K
20:14 | 6:31/mi
15K· 9.32 mi
1:01:13
Rank: #4164 (+86)
10K → 15K
20:25 | 6:34/mi
20K· 12.43 mi
1:21:50
Rank: #4046 (+118)
15K → 20K
20:37 | 6:38/mi
Half· 13.11 mi
1:26:15
Rank: #4017 (+29)
20K → Half
4:25 | 6:28/mi
25K· 15.53 mi
1:42:19
Rank: #3916 (+101)
Half → 25K
16:04 | 6:38/mi
30K· 18.64 mi
2:04:24
Rank: #4110 (-194)
25K → 30K
22:05 | 7:06/mi
20M
2:13:41
Rank: #4002 (+108)
30K → 20M
9:17 | 6:50/mi
21M
2:20:51
Rank: #3903 (+99)
20M → 21M
7:10 | 7:10/mi
35K· 21.75 mi
2:25:52
Rank: #3865 (+38)
21M → 35K
5:01 | 6:42/mi
23M
2:34:22
Rank: #3749 (+116)
35K → 23M
8:30 | 6:47/mi
24M
2:40:59
Rank: #3670 (+79)
23M → 24M
6:37 | 6:37/mi
40K· 24.85 mi
2:46:47
Rank: #3589 (+81)
24M → 40K
5:48 | 6:47/mi
25.2M
2:49:19
Rank: #3551 (+38)
40K → 25.2M
2:32 | 7:21/mi
Finish· 26.22 mi
2:56:02
Rank: #3501 (+50)
25.2M → Finish
6:43 | 6:35/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
Time1:26:15
Pace6:35 /mi
2nd Half
Distance13.11 mi
Time1:29:47
Pace6:51 /mi
📊Positive Split: 4.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:22:0320:346:3720:34
6:37
-
10K
6.21 mi10:42:1740:486:3420:14
6:31
-0:06
15K
9.32 mi11:02:421:01:136:3420:25
6:34
+0:03
20K
12.43 mi11:23:191:21:506:3520:37
6:38
+0:04
Half
13.11 mi11:27:441:26:156:354:25
6:28
-0:10
25K
15.53 mi11:43:481:42:196:3516:04
6:38
+0:10
30K
18.64 mi12:05:532:04:246:4022:05
7:06
+0:28
20M
20.00 mi12:15:102:13:416:419:17
6:50
-0:16
21M
21.00 mi12:22:202:20:516:427:10
7:10
+0:20
35K
21.75 mi12:27:212:25:526:425:01
6:42
-0:28
23M
23.00 mi12:35:512:34:226:438:30
6:47
+0:05
24M
24.00 mi12:42:282:40:596:426:37
6:37
-0:10
40K
24.85 mi12:48:162:46:476:435:48
6:47
+0:10
25.2M
25.20 mi12:50:482:49:196:432:32
7:21
+0:34
Finish
26.22 mi12:57:312:56:026:436:43
6:35
-0:46

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

6:28 /mi

Average Pace

6:43 /mi

Slowest Pace

7:21 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:46:20

94% of race

Time at Steady Pace

9:42

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:43 /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 mi10:22:0320:346:3720:34
6:37
#4787
10K
6.21 mi10:42:1740:486:3420:14
6:31
#4250
15K
9.32 mi11:02:421:01:136:3420:25
6:34
#4164
20K
12.43 mi11:23:191:21:506:3520:37
6:38
#4046
Half
13.11 mi11:27:441:26:156:354:25
6:28
#4017
25K
15.53 mi11:43:481:42:196:3516:04
6:38
#3916
30K
18.64 mi12:05:532:04:246:4022:05
7:06
#4110
20M
20.00 mi12:15:102:13:416:419:17
6:50
#4002
21M
21.00 mi12:22:202:20:516:427:10
7:10
#3903
35K
21.75 mi12:27:212:25:526:425:01
6:42
#3865
23M
23.00 mi12:35:512:34:226:438:30
6:47
#3749
24M
24.00 mi12:42:282:40:596:426:37
6:37
#3670
40K
24.85 mi12:48:162:46:476:435:48
6:47
#3589
25.2M
25.20 mi12:50:482:49:196:432:32
7:21
#3551
Finish
26.22 mi12:57:312:56:026:436:43
6:35
#3501
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi47872942944050(Top 14%)228(Top 2%)228(Top 4%)
10K6.21 mi3.10 mi4250+537245+49245+493848(Top 14%)215(Top 2%)215(Top 4%)
15K9.32 mi3.11 mi4164+86235+10235+104050(Top 14%)228(Top 2%)228(Top 4%)
20K12.43 mi3.11 mi4046+118228+7228+73940(Top 14%)220(Top 2%)220(Top 4%)
Half13.11 mi0.68 mi4017+29227+1227+13578(Top 13%)187(Top 2%)187(Top 3%)
25K15.53 mi2.42 mi3916+101218+9218+93649(Top 13%)205(Top 2%)205(Top 4%)
30K18.64 mi3.11 mi4110-194247-29247-295368(Top 19%)521(Top 4%)521(Top 10%)
20M20.00 mi1.36 mi4002+108240+7240+73147(Top 11%)219(Top 2%)219(Top 4%)
21M21.00 mi1.00 mi3903+99233+7233+73024(Top 11%)219(Top 2%)219(Top 4%)
35K21.75 mi0.75 mi3865+38232+1232+13599(Top 13%)323(Top 3%)323(Top 6%)
23M23.00 mi1.25 mi3749+116229+3229+32672(Top 9%)203(Top 2%)203(Top 4%)
24M24.00 mi1.00 mi3670+79230-1230-12601(Top 9%)202(Top 2%)202(Top 4%)
40K24.85 mi0.85 mi3589+81227+3227+32792(Top 10%)248(Top 2%)248(Top 5%)
25.2M25.20 mi0.35 mi3551+38225+2225+22818(Top 10%)294(Top 2%)294(Top 5%)
Finish26.22 mi1.02 mi3501+50223+2223+23318(Top 12%)385(Top 3%)385(Top 7%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 14%
×21stories
+97ft-345ft

Overall

4050

Females

228

F18-39

228

5K→10K

3.1 - 6.2 mi

Top 14%
×5stories
+79ft-138ft

Overall

3848

Females

215

F18-39

215

10K→15K

6.2 - 9.3 mi

Top 14%
×3stories
+67ft-78ft

Overall

4050

Females

228

F18-39

228

15K→20K

9.3 - 12.4 mi

Top 14%
×5stories
+106ft-86ft

Overall

3940

Females

220

F18-39

220

20K→Half

12.4 - 13.1 mi

Top 13%
×2stories
+19ft-37ft

Overall

3578

Females

187

F18-39

187

Half→25K

13.1 - 15.5 mi

Top 13%
×4stories
+66ft-88ft

Overall

3649

Females

205

F18-39

205

25K→30K

15.5 - 18.6 mi

Top 19%
×9stories
+181ft-148ft

Overall

5368

Females

521

F18-39

521

30K→20M

18.6 - 20.0 mi

Top 11%
×5stories
+64ft-50ft

Overall

3147

Females

219

F18-39

219

20M→21M

20.0 - 21.0 mi

Top 11%
×8stories
+106ft-24ft

Overall

3024

Females

219

F18-39

219

21M→35K

21.0 - 21.8 mi

Top 13%
×7stories
+17ft-86ft

Overall

3599

Females

323

F18-39

323

35K→23M

21.8 - 23.0 mi

Top 9%
×5stories
+23ft-63ft

Overall

2672

Females

203

F18-39

203

23M→24M

23.0 - 24.0 mi

Top 9%
×6stories
+12ft-82ft

Overall

2601

Females

202

F18-39

202

24M→40K

24.0 - 24.9 mi

Top 10%
×1story
+6ft-20ft

Overall

2792

Females

248

F18-39

248

40K→25.2M

24.9 - 25.2 mi

Top 10%
×1story
+13ft-16ft

Overall

2818

Females

294

F18-39

294

25.2M→Finish

25.2 - 26.2 mi

Top 12%
×2stories
+22ft-21ft

Overall

3318

Females

385

F18-39

385

Passing Analysis

Category:
Athletes Passed
1819
Passed By
533
Net Change
+1286
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#4787
5K → 10K55518+537#4787#4250
10K → 15K14357+86#4250#4164
15K → 20K16850+118#4164#4046
20K → Half334+29#4046#4017
Half → 25K12524+101#4017#3916
25K → 30K77271-194#3916#4110
30K → 20M12012+108#4110#4002
20M → 21M11617+99#4002#3903
21M → 35K5113+38#3903#3865
35K → 23M12711+116#3865#3749
23M → 24M9314+79#3749#3670
24M → 40K9312+81#3670#3589
40K → 25.2M479+38#3589#3551
25.2M → Finish7121+50#3551#3501
TOTALS1819533+1286
📊

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