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BOSTON MARATHON 2025

Shannon Krasnowiecki

Bib: 24724•F

RI

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Masters (Masters Women)
#0 / 6759
Division (F55-59)
#0 / 994
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
26:57
Rank: #20900
Start → 5K
26:57 | 8:40/mi
10K· 6.21 mi
54:25
Rank: #21214 (-314)
5K → 10K
27:28 | 8:50/mi
15K· 9.32 mi
1:22:05
Rank: #21309 (-95)
10K → 15K
27:40 | 8:54/mi
20K· 12.43 mi
1:51:32
Rank: #21818 (-509)
15K → 20K
29:27 | 9:29/mi
Half· 13.11 mi
1:57:35
Rank: #21784 (+34)
20K → Half
6:03 | 8:52/mi
25K· 15.53 mi
2:21:22
Rank: #22000 (-216)
Half → 25K
23:47 | 9:49/mi
30K· 18.64 mi
2:52:49
Rank: #22062 (-62)
25K → 30K
31:27 | 10:07/mi
20M
3:06:30
Rank: #21977 (+85)
30K → 20M
13:41 | 10:04/mi
21M
3:17:07
Rank: #21868 (+109)
20M → 21M
10:37 | 10:37/mi
35K· 21.75 mi
3:24:54
Rank: #21909 (-41)
21M → 35K
7:47 | 10:24/mi
23M
3:37:06
Rank: #21756 (+153)
35K → 23M
12:12 | 9:45/mi
24M
3:46:31
Rank: #21651 (+105)
23M → 24M
9:25 | 9:25/mi
40K· 24.85 mi
3:54:59
Rank: #21572 (+79)
24M → 40K
8:28 | 9:54/mi
25.2M
3:59:11
Rank: #21614 (-42)
40K → 25.2M
4:12 | 12:11/mi
Finish· 26.22 mi
4:08:03
Rank: #21474 (+140)
25.2M → Finish
8:52 | 8:42/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:57:35
Pace8:58 /mi
2nd Half
Distance13.11 mi
Time2:10:28
Pace9:57 /mi
📊Positive Split: 11.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:26:4226:578:4026:57
8:40
-
10K
6.21 mi11:54:1054:258:4527:28
8:50
+0:10
15K
9.32 mi12:21:501:22:058:4827:40
8:54
+0:04
20K
12.43 mi12:51:171:51:328:5829:27
9:29
+0:35
Half
13.11 mi12:57:201:57:358:586:03
8:52
-0:37
25K
15.53 mi13:21:072:21:229:0623:47
9:49
+0:57
30K
18.64 mi13:52:342:52:499:1631:27
10:07
+0:18
20M
20.00 mi14:06:153:06:309:1913:41
10:04
-0:03
21M
21.00 mi14:16:523:17:079:2310:37
10:37
+0:33
35K
21.75 mi14:24:393:24:549:257:47
10:24
-0:13
23M
23.00 mi14:36:513:37:069:2612:12
9:45
-0:39
24M
24.00 mi14:46:163:46:319:269:25
9:25
-0:20
40K
24.85 mi14:54:443:54:599:278:28
9:54
+0:29
25.2M
25.20 mi14:58:563:59:119:294:12
12:11
+2:17
Finish
26.22 mi15:07:484:08:039:288:52
8:42
-3:29

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

8:40 /mi

Average Pace

9:28 /mi

Slowest Pace

12:11 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:37:00

39% of race

Time at Steady Pace

2:08:27

52% of race

Time at Slower Pace

22:36

9% of race

Average Pace: 9:28 /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 mi11:26:4226:578:4026:57
8:40
#20900
10K
6.21 mi11:54:1054:258:4527:28
8:50
#21214
15K
9.32 mi12:21:501:22:058:4827:40
8:54
#21309
20K
12.43 mi12:51:171:51:328:5829:27
9:29
#21818
Half
13.11 mi12:57:201:57:358:586:03
8:52
#21784
25K
15.53 mi13:21:072:21:229:0623:47
9:49
#22000
30K
18.64 mi13:52:342:52:499:1631:27
10:07
#22062
20M
20.00 mi14:06:153:06:309:1913:41
10:04
#21977
21M
21.00 mi14:16:523:17:079:2310:37
10:37
#21868
35K
21.75 mi14:24:393:24:549:257:47
10:24
#21909
23M
23.00 mi14:36:513:37:069:2612:12
9:45
#21756
24M
24.00 mi14:46:163:46:319:269:25
9:25
#21651
40K
24.85 mi14:54:443:54:599:278:28
9:54
#21572
25.2M
25.20 mi14:58:563:59:119:294:12
12:11
#21614
Finish
26.22 mi15:07:484:08:039:288:52
8:42
#21474
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF55-59Seg. OverallSeg. FemalesSeg. F55-59
5K3.11 mi3.11 mi209008024802421609(Top 76%)8338(Top 68%)8338(Top 839%)
10K6.21 mi3.10 mi21214-3148168-1448168-14421610(Top 76%)8373(Top 68%)8373(Top 842%)
15K9.32 mi3.11 mi21309-958207-398207-3921609(Top 76%)8338(Top 68%)8338(Top 839%)
20K12.43 mi3.11 mi21818-5098504-2978504-29722832(Top 80%)9050(Top 74%)9050(Top 910%)
Half13.11 mi0.68 mi21784+348483+218483+2121287(Top 75%)8201(Top 67%)8201(Top 825%)
25K15.53 mi2.42 mi22000-2168605-1228605-12222791(Top 80%)9079(Top 74%)9079(Top 913%)
30K18.64 mi3.11 mi22062-628654-498654-4921978(Top 77%)8763(Top 72%)8763(Top 882%)
20M20.00 mi1.36 mi21977+858623+318623+3121191(Top 75%)8466(Top 69%)8466(Top 852%)
21M21.00 mi1.00 mi21868+1098586+378586+3720368(Top 72%)8114(Top 66%)8114(Top 816%)
35K21.75 mi0.75 mi21909-418628-428628-4222967(Top 81%)9537(Top 78%)9537(Top 959%)
23M23.00 mi1.25 mi21756+1538577+518577+5119619(Top 69%)7847(Top 64%)7847(Top 789%)
24M24.00 mi1.00 mi21651+1058545+328545+3219338(Top 68%)7735(Top 63%)7735(Top 778%)
40K24.85 mi0.85 mi21572+798515+308515+3020145(Top 71%)8233(Top 67%)8233(Top 828%)
25.2M25.20 mi0.35 mi21614-428552-378552-3723581(Top 83%)9958(Top 81%)9958(Top 1002%)
Finish26.22 mi1.02 mi21474+1408484+688484+6817522(Top 62%)6844(Top 56%)6844(Top 689%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 76%
×21stories
+97ft-345ft

Overall

21609

Females

8338

F55-59

8338

5K→10K

3.1 - 6.2 mi

Top 76%
×5stories
+79ft-138ft

Overall

21610

Females

8373

F55-59

8373

10K→15K

6.2 - 9.3 mi

Top 76%
×3stories
+67ft-78ft

Overall

21609

Females

8338

F55-59

8338

15K→20K

9.3 - 12.4 mi

Top 80%
×5stories
+106ft-86ft

Overall

22832

Females

9050

F55-59

9050

20K→Half

12.4 - 13.1 mi

Top 75%
×2stories
+19ft-37ft

Overall

21287

Females

8201

F55-59

8201

Half→25K

13.1 - 15.5 mi

Top 80%
×4stories
+66ft-88ft

Overall

22791

Females

9079

F55-59

9079

25K→30K

15.5 - 18.6 mi

Top 77%
×9stories
+181ft-148ft

Overall

21978

Females

8763

F55-59

8763

30K→20M

18.6 - 20.0 mi

Top 75%
×5stories
+64ft-50ft

Overall

21191

Females

8466

F55-59

8466

20M→21M

20.0 - 21.0 mi

Top 72%
×8stories
+106ft-24ft

Overall

20368

Females

8114

F55-59

8114

21M→35K

21.0 - 21.8 mi

Top 81%
×7stories
+17ft-86ft

Overall

22967

Females

9537

F55-59

9537

35K→23M

21.8 - 23.0 mi

Top 69%
×5stories
+23ft-63ft

Overall

19619

Females

7847

F55-59

7847

23M→24M

23.0 - 24.0 mi

Top 68%
×6stories
+12ft-82ft

Overall

19338

Females

7735

F55-59

7735

24M→40K

24.0 - 24.9 mi

Top 71%
×1story
+6ft-20ft

Overall

20145

Females

8233

F55-59

8233

40K→25.2M

24.9 - 25.2 mi

Top 83%
×1story
+13ft-16ft

Overall

23581

Females

9958

F55-59

9958

25.2M→Finish

25.2 - 26.2 mi

Top 62%
×2stories
+22ft-21ft

Overall

17522

Females

6844

F55-59

6844

Passing Analysis

Category:
Athletes Passed
1537
Passed By
2111
Net Change
-574
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#20900
5K → 10K153467-314#20900#21214
10K → 15K179274-95#21214#21309
15K → 20K76585-509#21309#21818
20K → Half4713+34#21818#21784
Half → 25K85301-216#21784#22000
25K → 30K165227-62#22000#22062
30K → 20M13247+85#22062#21977
20M → 21M13627+109#21977#21868
21M → 35K3172-41#21868#21909
35K → 23M16815+153#21909#21756
23M → 24M1127+105#21756#21651
24M → 40K9920+79#21651#21572
40K → 25.2M1052-42#21572#21614
25.2M → Finish1444+140#21614#21474
TOTALS15372111-574
📊

Passing Visuals

Category:
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🔥Passing Intensity

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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