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BOSTON MARATHON 2025

Crystal Pesce

Bib: 21354•F

TN

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Masters (Masters Women)
#0 / 6759
Top 44%
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
8:04/mi
25:05
↑ 97↓ 3451.5%
10K· 6.21 mi
8:03/mi
50:07
↑ 79↓ 1380.4%
15K· 9.32 mi
8:13/mi
1:15:39
↑ 67↓ 78
20K· 12.43 mi
8:27/mi
1:41:53
↑ 106↓ 860.1%
Half· 13.11 mi
8:21/mi
1:47:35
↑ 19↓ 370.5%
25K· 15.53 mi
8:29/mi
2:08:10
↑ 66↓ 880.2%
30K· 18.64 mi
9:02/mi
2:36:14
↑ 181↓ 1480.2%
20M
10:17/mi
2:50:12
↑ 64↓ 500.2%
21M
11:10/mi
3:01:22
↑ 106↓ 241.6%
35K· 21.75 mi
8:53/mi
3:08:01
↑ 17↓ 861.7%
23M
9:27/mi
3:19:51
↑ 23↓ 630.6%
24M
8:53/mi
3:28:44
↓ 821.3%
40K· 24.85 mi
9:10/mi
3:36:34
↓ 200.3%
25.2M
9:52/mi
3:39:58
↑ 13↓ 160.2%
Finish· 26.22 mi
8:38/mi
3:48:46
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:47:35
Pace8:12 /mi
2nd Half
Distance13.11 mi
Time2:01:11
Pace9:15 /mi
📊Positive Split: 12.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:18:2225:058:0425:05
8:04
-
10K
6.21 mi11:43:2450:078:0425:02
8:03
-0:01
15K
9.32 mi12:08:561:15:398:0725:32
8:13
+0:10
20K
12.43 mi12:35:101:41:538:1226:14
8:27
+0:14
Half
13.11 mi12:40:521:47:358:125:42
8:21
-0:06
25K
15.53 mi13:01:272:08:108:1520:35
8:29
+0:08
30K
18.64 mi13:29:312:36:148:2328:04
9:02
+0:33
20M
20.00 mi13:43:292:50:128:3113:58
10:17
+1:15
21M
21.00 mi13:54:393:01:228:3811:10
11:10
+0:53
35K
21.75 mi14:01:183:08:018:396:39
8:53
-2:17
23M
23.00 mi14:13:083:19:518:4111:50
9:27
+0:34
24M
24.00 mi14:22:013:28:448:428:53
8:53
-0:34
40K
24.85 mi14:29:513:36:348:437:50
9:10
+0:17
25.2M
25.20 mi14:33:153:39:588:443:24
9:52
+0:42
Finish
26.22 mi14:42:033:48:468:448:48
8:38
-1:14

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

8:03 /mi

Average Pace

8:44 /mi

Slowest Pace

11:10 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:47:35

47% of race

Time at Steady Pace

1:20:49

35% of race

Time at Slower Pace

40:22

18% of race

Average Pace: 8:43 /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 mi11:18:2225:058:0425:05
8:04
#17191
10K
6.21 mi11:43:2450:078:0425:02
8:03
#17011
15K
9.32 mi12:08:561:15:398:0725:32
8:13
#17203
20K
12.43 mi12:35:101:41:538:1226:14
8:27
#17335
Half
13.11 mi12:40:521:47:358:125:42
8:21
#17375
25K
15.53 mi13:01:272:08:108:1520:35
8:29
#17279
30K
18.64 mi13:29:312:36:148:2328:04
9:02
#17348
20M
20.00 mi13:43:292:50:128:3113:58
10:17
#17843
21M
21.00 mi13:54:393:01:228:3811:10
11:10
#18229
35K
21.75 mi14:01:183:08:018:396:39
8:53
#18203
23M
23.00 mi14:13:083:19:518:4111:50
9:27
#18216
24M
24.00 mi14:22:013:28:448:428:53
8:53
#18138
40K
24.85 mi14:29:513:36:348:437:50
9:10
#18098
25.2M
25.20 mi14:33:153:39:588:443:24
9:52
#18072
Finish
26.22 mi14:42:033:48:468:448:48
8:38
#18036
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF45-49Seg. OverallSeg. FemalesSeg. F45-49
5K3.11 mi3.11 mi171915852585217524(Top 62%)6032(Top 49%)6032(Top 333%)
10K6.21 mi3.10 mi17011+1805735+1175735+11716909(Top 60%)5654(Top 46%)5654(Top 312%)
15K9.32 mi3.11 mi17203-1925834-995834-9917524(Top 62%)6032(Top 49%)6032(Top 333%)
20K12.43 mi3.11 mi17335-1325937-1035937-10317846(Top 63%)6259(Top 51%)6259(Top 345%)
Half13.11 mi0.68 mi17375-405965-285965-2818360(Top 65%)6537(Top 53%)6537(Top 361%)
25K15.53 mi2.42 mi17279+965933+325933+3217152(Top 60%)5949(Top 49%)5949(Top 328%)
30K18.64 mi3.11 mi17348-696030-976030-9717861(Top 63%)6510(Top 53%)6510(Top 359%)
20M20.00 mi1.36 mi17843-4956338-3086338-30821801(Top 77%)8786(Top 72%)8786(Top 485%)
21M21.00 mi1.00 mi18229-3866570-2326570-23221810(Top 77%)8867(Top 73%)8867(Top 489%)
35K21.75 mi0.75 mi18203+266575-56575-517729(Top 62%)6753(Top 55%)6753(Top 372%)
23M23.00 mi1.25 mi18216-136610-356610-3518480(Top 65%)7222(Top 59%)7222(Top 398%)
24M24.00 mi1.00 mi18138+786594+166594+1616786(Top 59%)6376(Top 52%)6376(Top 352%)
40K24.85 mi0.85 mi18098+406600-66600-617190(Top 61%)6685(Top 55%)6685(Top 369%)
25.2M25.20 mi0.35 mi18072+266593+76593+716447(Top 58%)6308(Top 52%)6308(Top 348%)
Finish26.22 mi1.02 mi18036+366591+26591+217111(Top 60%)6616(Top 54%)6616(Top 365%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 62%
×21story building
+97ft-345ft

Overall

17524

Females

6032

F45-49

6032

5K→10K

3.1 - 6.2 mi

Top 60%
×5story building
+79ft-138ft

Overall

16909

Females

5654

F45-49

5654

10K→15K

6.2 - 9.3 mi

Top 62%
×3story building
+67ft-78ft

Overall

17524

Females

6032

F45-49

6032

15K→20K

9.3 - 12.4 mi

Top 63%
×5story building
+106ft-86ft

Overall

17846

Females

6259

F45-49

6259

20K→Half

12.4 - 13.1 mi

Top 65%
×2story building
+19ft-37ft

Overall

18360

Females

6537

F45-49

6537

Half→25K

13.1 - 15.5 mi

Top 60%
×4story building
+66ft-88ft

Overall

17152

Females

5949

F45-49

5949

25K→30K

15.5 - 18.6 mi

Top 63%
×9story building
+181ft-148ft

Overall

17861

Females

6510

F45-49

6510

30K→20M

18.6 - 20.0 mi

Top 77%
×5story building
+64ft-50ft

Overall

21801

Females

8786

F45-49

8786

20M→21M

20.0 - 21.0 mi

Top 77%
×8story building
+106ft-24ft

Overall

21810

Females

8867

F45-49

8867

21M→35K

21.0 - 21.8 mi

Top 62%
×7story building
+17ft-86ft

Overall

17729

Females

6753

F45-49

6753

35K→23M

21.8 - 23.0 mi

Top 65%
×5story building
+23ft-63ft

Overall

18480

Females

7222

F45-49

7222

23M→24M

23.0 - 24.0 mi

Top 59%
×6story building
+12ft-82ft

Overall

16786

Females

6376

F45-49

6376

24M→40K

24.0 - 24.9 mi

Top 61%
×1story
+6ft-20ft

Overall

17190

Females

6685

F45-49

6685

40K→25.2M

24.9 - 25.2 mi

Top 58%
×1story
+13ft-16ft

Overall

16447

Females

6308

F45-49

6308

25.2M→Finish

25.2 - 26.2 mi

Top 60%
×2story building
+22ft-21ft

Overall

17111

Females

6616

F45-49

6616

Passing Analysis

Category:
Athletes Passed
1643
Passed By
2488
Net Change
-845
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#17191
5K → 10K390210+180#17191#17011
10K → 15K131323-192#17011#17203
15K → 20K150282-132#17203#17335
20K → Half1858-40#17335#17375
Half → 25K215119+96#17375#17279
25K → 30K194263-69#17279#17348
30K → 20M36531-495#17348#17843
20M → 21M25411-386#17843#18229
21M → 35K6741+26#18229#18203
35K → 23M97110-13#18203#18216
23M → 24M11133+78#18216#18138
24M → 40K8646+40#18138#18098
40K → 25.2M4216+26#18098#18072
25.2M → Finish8145+36#18072#18036
TOTALS16432488-845
📊

Passing Visuals

Category:
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🔄Passing Circle

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🌊Position Flow

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🏃Race Lanes

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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing