Boston Marathon logo
BOSTON MARATHON 2025

Hilary Pecis

Bib: 20651•F

CA

0:00
0:00
/ mi
Masters
Be the first to cheer!
Overall
#0 / 28404
Gender (Female)
#0 / 12228
Top 39%
Masters (Masters Women)
#0 / 6759
Top 25%
Division (F45-49)
#0 / 1813
Top 29%
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
7:55/mi
24:37
↑ 97↓ 3451.5%
10K· 6.21 mi
7:58/mi
49:22
↑ 79↓ 1380.4%
15K· 9.32 mi
8:06/mi
1:14:32
↑ 67↓ 78
20K· 12.43 mi
8:17/mi
1:40:17
↑ 106↓ 860.1%
Half· 13.11 mi
8:11/mi
1:45:52
↑ 19↓ 370.5%
25K· 15.53 mi
8:11/mi
2:05:42
↑ 66↓ 880.2%
30K· 18.64 mi
8:34/mi
2:32:19
↑ 181↓ 1480.2%
20M
8:29/mi
2:43:51
↑ 64↓ 500.2%
21M
8:38/mi
2:52:29
↑ 106↓ 241.6%
35K· 21.75 mi
8:20/mi
2:58:43
↑ 17↓ 861.7%
23M
8:21/mi
3:09:10
↑ 23↓ 630.6%
24M
8:06/mi
3:17:16
↓ 821.3%
40K· 24.85 mi
8:15/mi
3:24:19
↓ 200.3%
25.2M
8:54/mi
3:27:23
↑ 13↓ 160.2%
Finish· 26.22 mi
8:17/mi
3:35:49
↑ 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
Time1:45:52
Pace8:05 /mi
2nd Half
Distance13.11 mi
Time1:49:57
Pace8:23 /mi
📊Positive Split: 3.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:17:5224:377:5524:37
7:55
-
10K
6.21 mi11:42:3749:227:5724:45
7:58
+0:03
15K
9.32 mi12:07:471:14:328:0025:10
8:06
+0:08
20K
12.43 mi12:33:321:40:178:0425:45
8:17
+0:11
Half
13.11 mi12:39:071:45:528:055:35
8:11
-0:06
25K
15.53 mi12:58:572:05:428:0619:50
8:11
0:00
30K
18.64 mi13:25:342:32:198:1026:37
8:34
+0:23
20M
20.00 mi13:37:062:43:518:1211:32
8:29
-0:05
21M
21.00 mi13:45:442:52:298:138:38
8:38
+0:09
35K
21.75 mi13:51:582:58:438:136:14
8:20
-0:18
23M
23.00 mi14:02:253:09:108:1310:27
8:21
+0:01
24M
24.00 mi14:10:313:17:168:138:06
8:06
-0:15
40K
24.85 mi14:17:343:24:198:137:03
8:15
+0:09
25.2M
25.20 mi14:20:383:27:238:143:04
8:54
+0:39
Finish
26.22 mi14:29:043:35:498:148:26
8:17
-0:37

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

7:55 /mi

Average Pace

8:14 /mi

Slowest Pace

8:54 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:32:45

99% of race

Time at Steady Pace

3:04

1% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:14 /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 mi11:17:5224:377:5524:37
7:55
#15951
10K
6.21 mi11:42:3749:227:5724:45
7:58
#16069
15K
9.32 mi12:07:471:14:328:0025:10
8:06
#16303
20K
12.43 mi12:33:321:40:178:0425:45
8:17
#16448
Half
13.11 mi12:39:071:45:528:055:35
8:11
#16501
25K
15.53 mi12:58:572:05:428:0619:50
8:11
#16265
30K
18.64 mi13:25:342:32:198:1026:37
8:34
#16019
20M
20.00 mi13:37:062:43:518:1211:32
8:29
#15808
21M
21.00 mi13:45:442:52:298:138:38
8:38
#15489
35K
21.75 mi13:51:582:58:438:136:14
8:20
#15444
23M
23.00 mi14:02:253:09:108:1310:27
8:21
#15223
24M
24.00 mi14:10:313:17:168:138:06
8:06
#15020
40K
24.85 mi14:17:343:24:198:137:03
8:15
#14884
25.2M
25.20 mi14:20:383:27:238:143:04
8:54
#14810
Finish
26.22 mi14:29:043:35:498:148:26
8:17
#14778
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF45-49Seg. OverallSeg. FemalesSeg. F45-49
5K3.11 mi3.11 mi159515117511716742(Top 59%)5577(Top 46%)5577(Top 308%)
10K6.21 mi3.10 mi16069-1185182-655182-6516207(Top 57%)5247(Top 43%)5247(Top 289%)
15K9.32 mi3.11 mi16303-2345315-1335315-13316742(Top 59%)5577(Top 46%)5577(Top 308%)
20K12.43 mi3.11 mi16448-1455400-855400-8516865(Top 59%)5697(Top 47%)5697(Top 314%)
Half13.11 mi0.68 mi16501-535437-375437-3717188(Top 61%)5853(Top 48%)5853(Top 323%)
25K15.53 mi2.42 mi16265+2365320+1175320+11715186(Top 53%)4841(Top 40%)4841(Top 267%)
30K18.64 mi3.11 mi16019+2465231+895231+8915190(Top 53%)5009(Top 41%)5009(Top 276%)
20M20.00 mi1.36 mi15808+2115155+765155+7613724(Top 48%)4373(Top 36%)4373(Top 241%)
21M21.00 mi1.00 mi15489+3195008+1475008+14711326(Top 40%)3268(Top 27%)3268(Top 180%)
35K21.75 mi0.75 mi15444+454996+124996+1214509(Top 51%)4963(Top 41%)4963(Top 274%)
23M23.00 mi1.25 mi15223+2214906+904906+9012353(Top 43%)3936(Top 32%)3936(Top 217%)
24M24.00 mi1.00 mi15020+2034813+934813+9311953(Top 42%)3792(Top 31%)3792(Top 209%)
40K24.85 mi0.85 mi14884+1364765+484765+4811884(Top 42%)3871(Top 32%)3871(Top 214%)
25.2M25.20 mi0.35 mi14810+744728+374728+3711293(Top 40%)3667(Top 30%)3667(Top 202%)
Finish26.22 mi1.02 mi14778+324744-164744-1614785(Top 52%)5358(Top 44%)5358(Top 296%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 59%
×21story building
+97ft-345ft

Overall

16742

Females

5577

F45-49

5577

5K→10K

3.1 - 6.2 mi

Top 57%
×5story building
+79ft-138ft

Overall

16207

Females

5247

F45-49

5247

10K→15K

6.2 - 9.3 mi

Top 59%
×3story building
+67ft-78ft

Overall

16742

Females

5577

F45-49

5577

15K→20K

9.3 - 12.4 mi

Top 59%
×5story building
+106ft-86ft

Overall

16865

Females

5697

F45-49

5697

20K→Half

12.4 - 13.1 mi

Top 61%
×2story building
+19ft-37ft

Overall

17188

Females

5853

F45-49

5853

Half→25K

13.1 - 15.5 mi

Top 53%
×4story building
+66ft-88ft

Overall

15186

Females

4841

F45-49

4841

25K→30K

15.5 - 18.6 mi

Top 53%
×9story building
+181ft-148ft

Overall

15190

Females

5009

F45-49

5009

30K→20M

18.6 - 20.0 mi

Top 48%
×5story building
+64ft-50ft

Overall

13724

Females

4373

F45-49

4373

20M→21M

20.0 - 21.0 mi

Top 40%
×8story building
+106ft-24ft

Overall

11326

Females

3268

F45-49

3268

21M→35K

21.0 - 21.8 mi

Top 51%
×7story building
+17ft-86ft

Overall

14509

Females

4963

F45-49

4963

35K→23M

21.8 - 23.0 mi

Top 43%
×5story building
+23ft-63ft

Overall

12353

Females

3936

F45-49

3936

23M→24M

23.0 - 24.0 mi

Top 42%
×6story building
+12ft-82ft

Overall

11953

Females

3792

F45-49

3792

24M→40K

24.0 - 24.9 mi

Top 42%
×1story
+6ft-20ft

Overall

11884

Females

3871

F45-49

3871

40K→25.2M

24.9 - 25.2 mi

Top 40%
×1story
+13ft-16ft

Overall

11293

Females

3667

F45-49

3667

25.2M→Finish

25.2 - 26.2 mi

Top 52%
×2story building
+22ft-21ft

Overall

14785

Females

5358

F45-49

5358

Passing Analysis

Category:
Athletes Passed
2601
Passed By
1428
Net Change
+1173
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#15951
5K → 10K266384-118#15951#16069
10K → 15K127361-234#16069#16303
15K → 20K167312-145#16303#16448
20K → Half2174-53#16448#16501
Half → 25K28549+236#16501#16265
25K → 30K34094+246#16265#16019
30K → 20M23423+211#16019#15808
20M → 21M3256+319#15808#15489
21M → 35K7429+45#15489#15444
35K → 23M23918+221#15444#15223
23M → 24M2074+203#15223#15020
24M → 40K14610+136#15020#14884
40K → 25.2M795+74#14884#14810
25.2M → Finish9159+32#14810#14778
TOTALS26011428+1173
📊

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