Boston Marathon logo
BOSTON MARATHON 2025

Natasha Gunaratne

Bib: 11752•F

CA

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

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
26:45
Rank: #20526
Start → 5K
26:45 | 8:37/mi
10K· 6.21 mi
52:40
Rank: #19690 (+836)
5K → 10K
25:55 | 8:21/mi
15K· 9.32 mi
1:19:27
Rank: #19829 (-139)
10K → 15K
26:47 | 8:37/mi
20K· 12.43 mi
1:46:35
Rank: #19748 (+81)
15K → 20K
27:08 | 8:44/mi
Half· 13.11 mi
1:52:28
Rank: #19754 (-6)
20K → Half
5:53 | 8:37/mi
25K· 15.53 mi
2:15:50
Rank: #20329 (-575)
Half → 25K
23:22 | 9:38/mi
30K· 18.64 mi
2:43:51
Rank: #19816 (+513)
25K → 30K
28:01 | 9:01/mi
20M
2:56:28
Rank: #19684 (+132)
30K → 20M
12:37 | 9:17/mi
21M
3:07:03
Rank: #19738 (-54)
20M → 21M
10:35 | 10:35/mi
35K· 21.75 mi
3:14:06
Rank: #19753 (-15)
21M → 35K
7:03 | 9:25/mi
23M
3:26:21
Rank: #19772 (-19)
35K → 23M
12:15 | 9:47/mi
24M
3:36:03
Rank: #19816 (-44)
23M → 24M
9:42 | 9:42/mi
40K· 24.85 mi
3:44:13
Rank: #19782 (+34)
24M → 40K
8:10 | 9:33/mi
25.2M
3:47:49
Rank: #19768 (+14)
40K → 25.2M
3:36 | 10:26/mi
Finish· 26.22 mi
3:56:48
Rank: #19705 (+63)
25.2M → Finish
8:59 | 8:49/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
Time1:52:28
Pace8:35 /mi
2nd Half
Distance13.11 mi
Time2:04:20
Pace9:29 /mi
📊Positive Split: 10.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:53:3626:458:3726:45
8:37
-
10K
6.21 mi11:19:3152:408:2925:55
8:21
-0:16
15K
9.32 mi11:46:181:19:278:3126:47
8:37
+0:16
20K
12.43 mi12:13:261:46:358:3527:08
8:44
+0:07
Half
13.11 mi12:19:191:52:288:355:53
8:37
-0:07
25K
15.53 mi12:42:412:15:508:4523:22
9:38
+1:01
30K
18.64 mi13:10:422:43:518:4728:01
9:01
-0:37
20M
20.00 mi13:23:192:56:288:4912:37
9:17
+0:16
21M
21.00 mi13:33:543:07:038:5410:35
10:35
+1:18
35K
21.75 mi13:40:573:14:068:557:03
9:25
-1:10
23M
23.00 mi13:53:123:26:218:5812:15
9:47
+0:22
24M
24.00 mi14:02:543:36:039:009:42
9:42
-0:05
40K
24.85 mi14:11:043:44:139:018:10
9:33
-0:09
25.2M
25.20 mi14:14:403:47:499:023:36
10:26
+0:53
Finish
26.22 mi14:23:393:56:489:028:59
8:49
-1:37

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

8:21 /mi

Average Pace

9:02 /mi

Slowest Pace

10:35 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:01:27

51% of race

Time at Steady Pace

55:51

24% of race

Time at Slower Pace

59:30

25% of race

Average Pace: 9:02 /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 mi10:53:3626:458:3726:45
8:37
#20526
10K
6.21 mi11:19:3152:408:2925:55
8:21
#19690
15K
9.32 mi11:46:181:19:278:3126:47
8:37
#19829
20K
12.43 mi12:13:261:46:358:3527:08
8:44
#19748
Half
13.11 mi12:19:191:52:288:355:53
8:37
#19754
25K
15.53 mi12:42:412:15:508:4523:22
9:38
#20329
30K
18.64 mi13:10:422:43:518:4728:01
9:01
#19816
20M
20.00 mi13:23:192:56:288:4912:37
9:17
#19684
21M
21.00 mi13:33:543:07:038:5410:35
10:35
#19738
35K
21.75 mi13:40:573:14:068:557:03
9:25
#19753
23M
23.00 mi13:53:123:26:218:5812:15
9:47
#19772
24M
24.00 mi14:02:543:36:039:009:42
9:42
#19816
40K
24.85 mi14:11:043:44:139:018:10
9:33
#19782
25.2M
25.20 mi14:14:403:47:499:023:36
10:26
#19768
Finish
26.22 mi14:23:393:56:489:028:59
8:49
#19705
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi205267821782120049(Top 71%)7466(Top 61%)7466(Top 137%)
10K6.21 mi3.10 mi19690+8367297+5247297+52418836(Top 66%)6786(Top 55%)6786(Top 124%)
15K9.32 mi3.11 mi19829-1397364-677364-6720049(Top 71%)7466(Top 61%)7466(Top 137%)
20K12.43 mi3.11 mi19748+817332+327332+3219603(Top 69%)7267(Top 59%)7267(Top 133%)
Half13.11 mi0.68 mi19754-67337-57337-519977(Top 70%)7465(Top 61%)7465(Top 136%)
25K15.53 mi2.42 mi20329-5757674-3377674-33722310(Top 79%)8818(Top 72%)8818(Top 161%)
30K18.64 mi3.11 mi19816+5137412+2627412+26217793(Top 63%)6472(Top 53%)6472(Top 118%)
20M20.00 mi1.36 mi19684+1327364+487364+4818244(Top 64%)6862(Top 56%)6862(Top 125%)
21M21.00 mi1.00 mi19738-547426-627426-6220273(Top 71%)8056(Top 66%)8056(Top 147%)
35K21.75 mi0.75 mi19753-157449-237449-2320060(Top 71%)8010(Top 66%)8010(Top 146%)
23M23.00 mi1.25 mi19772-197494-457494-4519756(Top 70%)7921(Top 65%)7921(Top 145%)
24M24.00 mi1.00 mi19816-447543-497543-4920390(Top 72%)8282(Top 68%)8282(Top 151%)
40K24.85 mi0.85 mi19782+347545-27545-218928(Top 67%)7598(Top 62%)7598(Top 139%)
25.2M25.20 mi0.35 mi19768+147538+77538+718835(Top 66%)7546(Top 62%)7546(Top 138%)
Finish26.22 mi1.02 mi19705+637522+167522+1618157(Top 64%)7166(Top 59%)7166(Top 131%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 71%
×21stories
+97ft-345ft

Overall

20049

Females

7466

F18-39

7466

5K→10K

3.1 - 6.2 mi

Top 66%
×5stories
+79ft-138ft

Overall

18836

Females

6786

F18-39

6786

10K→15K

6.2 - 9.3 mi

Top 71%
×3stories
+67ft-78ft

Overall

20049

Females

7466

F18-39

7466

15K→20K

9.3 - 12.4 mi

Top 69%
×5stories
+106ft-86ft

Overall

19603

Females

7267

F18-39

7267

20K→Half

12.4 - 13.1 mi

Top 70%
×2stories
+19ft-37ft

Overall

19977

Females

7465

F18-39

7465

Half→25K

13.1 - 15.5 mi

Top 79%
×4stories
+66ft-88ft

Overall

22310

Females

8818

F18-39

8818

25K→30K

15.5 - 18.6 mi

Top 63%
×9stories
+181ft-148ft

Overall

17793

Females

6472

F18-39

6472

30K→20M

18.6 - 20.0 mi

Top 64%
×5stories
+64ft-50ft

Overall

18244

Females

6862

F18-39

6862

20M→21M

20.0 - 21.0 mi

Top 71%
×8stories
+106ft-24ft

Overall

20273

Females

8056

F18-39

8056

21M→35K

21.0 - 21.8 mi

Top 71%
×7stories
+17ft-86ft

Overall

20060

Females

8010

F18-39

8010

35K→23M

21.8 - 23.0 mi

Top 70%
×5stories
+23ft-63ft

Overall

19756

Females

7921

F18-39

7921

23M→24M

23.0 - 24.0 mi

Top 72%
×6stories
+12ft-82ft

Overall

20390

Females

8282

F18-39

8282

24M→40K

24.0 - 24.9 mi

Top 67%
×1story
+6ft-20ft

Overall

18928

Females

7598

F18-39

7598

40K→25.2M

24.9 - 25.2 mi

Top 66%
×1story
+13ft-16ft

Overall

18835

Females

7546

F18-39

7546

25.2M→Finish

25.2 - 26.2 mi

Top 64%
×2stories
+22ft-21ft

Overall

18157

Females

7166

F18-39

7166

Passing Analysis

Category:
Athletes Passed
2547
Passed By
1726
Net Change
+821
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#20526
5K → 10K90266+836#20526#19690
10K → 15K157296-139#19690#19829
15K → 20K230149+81#19829#19748
20K → Half3339-6#19748#19754
Half → 25K44619-575#19754#20329
25K → 30K54128+513#20329#19816
30K → 20M16836+132#19816#19684
20M → 21M83137-54#19684#19738
21M → 35K4055-15#19738#19753
35K → 23M93112-19#19753#19772
23M → 24M5397-44#19772#19816
24M → 40K7642+34#19816#19782
40K → 25.2M3016+14#19782#19768
25.2M → Finish9734+63#19768#19705
TOTALS25471726+821
📊

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