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BOSTON MARATHON 2025

Shannon Whiteley

Bib: 21462•F

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Masters (Masters Women)
#0 / 6759
Top 48%
Division (F50-54)
#0 / 1303
Top 45%
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
8:00/mi
24:51
↑ 97↓ 3451.5%
10K· 6.21 mi
8:09/mi
50:10
↑ 79↓ 1380.4%
15K· 9.32 mi
8:13/mi
1:15:43
↑ 67↓ 78
20K· 12.43 mi
8:17/mi
1:41:28
↑ 106↓ 860.1%
Half· 13.11 mi
8:17/mi
1:47:07
↑ 19↓ 370.5%
25K· 15.53 mi
8:29/mi
2:07:42
↑ 66↓ 880.2%
30K· 18.64 mi
8:59/mi
2:35:38
↑ 181↓ 1480.2%
20M
9:28/mi
2:48:30
↑ 64↓ 500.2%
21M
10:19/mi
2:58:49
↑ 106↓ 241.6%
35K· 21.75 mi
9:13/mi
3:05:43
↑ 17↓ 861.7%
23M
9:51/mi
3:18:03
↑ 23↓ 630.6%
24M
10:00/mi
3:28:03
↓ 821.3%
40K· 24.85 mi
10:25/mi
3:36:57
↓ 200.3%
25.2M
11:39/mi
3:40:58
↑ 13↓ 160.2%
Finish· 26.22 mi
10:14/mi
3:51:24
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:47:07
Pace8:10 /mi
2nd Half
Distance13.11 mi
Time2:04:17
Pace9:29 /mi
📊Positive Split: 16.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:20:0524:518:0024:51
8:00
-
10K
6.21 mi11:45:2450:108:0425:19
8:09
+0:09
15K
9.32 mi12:10:571:15:438:0725:33
8:13
+0:04
20K
12.43 mi12:36:421:41:288:1025:45
8:17
+0:04
Half
13.11 mi12:42:211:47:078:105:39
8:17
0:00
25K
15.53 mi13:02:562:07:428:1320:35
8:29
+0:12
30K
18.64 mi13:30:522:35:388:2127:56
8:59
+0:30
20M
20.00 mi13:43:442:48:308:2512:52
9:28
+0:29
21M
21.00 mi13:54:032:58:498:3110:19
10:19
+0:51
35K
21.75 mi14:00:573:05:438:326:54
9:13
-1:06
23M
23.00 mi14:13:173:18:038:3712:20
9:51
+0:38
24M
24.00 mi14:23:173:28:038:4010:00
10:00
+0:09
40K
24.85 mi14:32:113:36:578:448:54
10:25
+0:25
25.2M
25.20 mi14:36:123:40:588:464:01
11:39
+1:14
Finish
26.22 mi14:46:383:51:248:5010:26
10:14
-1:25

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

8:00 /mi

Average Pace

8:50 /mi

Slowest Pace

11:39 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:07:42

55% of race

Time at Steady Pace

47:42

21% of race

Time at Slower Pace

56:00

24% of race

Average Pace: 8:50 /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 mi11:20:0524:518:0024:51
8:00
#16598
10K
6.21 mi11:45:2450:108:0425:19
8:09
#17066
15K
9.32 mi12:10:571:15:438:0725:33
8:13
#17259
20K
12.43 mi12:36:421:41:288:1025:45
8:17
#17121
Half
13.11 mi12:42:211:47:078:105:39
8:17
#17140
25K
15.53 mi13:02:562:07:428:1320:35
8:29
#17075
30K
18.64 mi13:30:522:35:388:2127:56
8:59
#17133
20M
20.00 mi13:43:442:48:308:2512:52
9:28
#17302
21M
21.00 mi13:54:032:58:498:3110:19
10:19
#17469
35K
21.75 mi14:00:573:05:438:326:54
9:13
#17541
23M
23.00 mi14:13:173:18:038:3712:20
9:51
#17732
24M
24.00 mi14:23:173:28:038:4010:00
10:00
#17955
40K
24.85 mi14:32:113:36:578:448:54
10:25
#18180
25.2M
25.20 mi14:36:123:40:588:464:01
11:39
#18302
Finish
26.22 mi14:46:383:51:248:5010:26
10:14
#18624
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF50-54Seg. OverallSeg. FemalesSeg. F50-54
5K3.11 mi3.11 mi165985516551617564(Top 62%)6056(Top 50%)6056(Top 465%)
10K6.21 mi3.10 mi17066-4685766-2505766-25017557(Top 62%)6038(Top 49%)6038(Top 463%)
15K9.32 mi3.11 mi17259-1935869-1035869-10317564(Top 62%)6056(Top 50%)6056(Top 465%)
20K12.43 mi3.11 mi17121+1385814+555814+5516882(Top 59%)5714(Top 47%)5714(Top 439%)
Half13.11 mi0.68 mi17140-195833-195833-1917885(Top 63%)6264(Top 51%)6264(Top 481%)
25K15.53 mi2.42 mi17075+655811+225811+2217153(Top 60%)5950(Top 49%)5950(Top 457%)
30K18.64 mi3.11 mi17133-585892-815892-8117660(Top 62%)6396(Top 52%)6396(Top 491%)
20M20.00 mi1.36 mi17302-1696028-1366028-13619044(Top 67%)7280(Top 60%)7280(Top 559%)
21M21.00 mi1.00 mi17469-1676152-1246152-12419432(Top 68%)7573(Top 62%)7573(Top 581%)
35K21.75 mi0.75 mi17541-726209-576209-5719281(Top 68%)7590(Top 62%)7590(Top 583%)
23M23.00 mi1.25 mi17732-1916349-1406349-14019963(Top 70%)8030(Top 66%)8030(Top 616%)
24M24.00 mi1.00 mi17955-2236502-1536502-15321378(Top 75%)8791(Top 72%)8791(Top 675%)
40K24.85 mi0.85 mi18180-2256648-1466648-14621670(Top 76%)9020(Top 74%)9020(Top 692%)
25.2M25.20 mi0.35 mi18302-1226727-796727-7922447(Top 79%)9370(Top 77%)9370(Top 719%)
Finish26.22 mi1.02 mi18624-3226916-1896916-18923635(Top 83%)9989(Top 82%)9989(Top 767%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 62%
×21story building
+97ft-345ft

Overall

17564

Females

6056

F50-54

6056

5K→10K

3.1 - 6.2 mi

Top 62%
×5story building
+79ft-138ft

Overall

17557

Females

6038

F50-54

6038

10K→15K

6.2 - 9.3 mi

Top 62%
×3story building
+67ft-78ft

Overall

17564

Females

6056

F50-54

6056

15K→20K

9.3 - 12.4 mi

Top 59%
×5story building
+106ft-86ft

Overall

16882

Females

5714

F50-54

5714

20K→Half

12.4 - 13.1 mi

Top 63%
×2story building
+19ft-37ft

Overall

17885

Females

6264

F50-54

6264

Half→25K

13.1 - 15.5 mi

Top 60%
×4story building
+66ft-88ft

Overall

17153

Females

5950

F50-54

5950

25K→30K

15.5 - 18.6 mi

Top 62%
×9story building
+181ft-148ft

Overall

17660

Females

6396

F50-54

6396

30K→20M

18.6 - 20.0 mi

Top 67%
×5story building
+64ft-50ft

Overall

19044

Females

7280

F50-54

7280

20M→21M

20.0 - 21.0 mi

Top 68%
×8story building
+106ft-24ft

Overall

19432

Females

7573

F50-54

7573

21M→35K

21.0 - 21.8 mi

Top 68%
×7story building
+17ft-86ft

Overall

19281

Females

7590

F50-54

7590

35K→23M

21.8 - 23.0 mi

Top 70%
×5story building
+23ft-63ft

Overall

19963

Females

8030

F50-54

8030

23M→24M

23.0 - 24.0 mi

Top 75%
×6story building
+12ft-82ft

Overall

21378

Females

8791

F50-54

8791

24M→40K

24.0 - 24.9 mi

Top 76%
×1story
+6ft-20ft

Overall

21670

Females

9020

F50-54

9020

40K→25.2M

24.9 - 25.2 mi

Top 79%
×1story
+13ft-16ft

Overall

22447

Females

9370

F50-54

9370

25.2M→Finish

25.2 - 26.2 mi

Top 83%
×2story building
+22ft-21ft

Overall

23635

Females

9989

F50-54

9989

Passing Analysis

Category:
Athletes Passed
1243
Passed By
3269
Net Change
-2026
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#16598
5K → 10K138606-468#16598#17066
10K → 15K125318-193#17066#17259
15K → 20K253115+138#17259#17121
20K → Half2645-19#17121#17140
Half → 25K187122+65#17140#17075
25K → 30K209267-58#17075#17133
30K → 20M62231-169#17133#17302
20M → 21M59226-167#17302#17469
21M → 35K50122-72#17469#17541
35K → 23M61252-191#17541#17732
23M → 24M33256-223#17732#17955
24M → 40K23248-225#17955#18180
40K → 25.2M5127-122#18180#18302
25.2M → Finish12334-322#18302#18624
TOTALS12433269-2026
📊

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