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BOSTON MARATHON 2025

Sara Flynn

Bib: 18953•F

NH

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Top 45%
Masters (Masters Women)
#0 / 6759
Top 32%
Division (F50-54)
#0 / 1303
Top 24%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
24:58
Rank: #16880
Start → 5K
8:02/mi
24:58 split
10K· 6.21 mi
50:03
Rank: #16948 (-68)
5K → 10K
8:04/mi
25:05 split
15K· 9.32 mi
1:15:40
Rank: #17219 (-271)
10K → 15K
8:15/mi
25:37 split
20K· 12.43 mi
1:41:48
Rank: #17290 (-71)
15K → 20K
8:25/mi
26:08 split
Half· 13.11 mi
1:47:31
Rank: #17336 (-46)
20K → Half
8:23/mi
5:43 split
25K· 15.53 mi
2:07:57
Rank: #17191 (+145)
Half → 25K
8:26/mi
20:26 split
30K· 18.64 mi
2:35:12
Rank: #16986 (+205)
25K → 30K
8:46/mi
27:15 split
20M
2:47:10
Rank: #16875 (+111)
30K → 20M
8:48/mi
11:58 split
21M
2:56:16
Rank: #16661 (+214)
20M → 21M
9:06/mi
9:06 split
35K· 21.75 mi
3:02:33
Rank: #16576 (+85)
21M → 35K
8:24/mi
6:17 split
23M
3:13:39
Rank: #16460 (+116)
35K → 23M
8:52/mi
11:06 split
24M
3:22:09
Rank: #16363 (+97)
23M → 24M
8:30/mi
8:30 split
40K· 24.85 mi
3:29:24
Rank: #16241 (+122)
24M → 40K
8:29/mi
7:15 split
25.2M
3:32:33
Rank: #16172 (+69)
40K → 25.2M
9:08/mi
3:09 split
Finish· 26.22 mi
3:40:46
Rank: #16053 (+119)
25.2M → Finish
8:04/mi
8:13 split

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:47:31
Pace8:12 /mi
2nd Half
Distance13.11 mi
Time1:53:15
Pace8:38 /mi
📊Positive Split: 5.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:15:4324:588:0224:58
8:02
-
10K
6.21 mi11:40:4850:038:0325:05
8:04
+0:02
15K
9.32 mi12:06:251:15:408:0725:37
8:15
+0:11
20K
12.43 mi12:32:331:41:488:1126:08
8:25
+0:10
Half
13.11 mi12:38:161:47:318:125:43
8:23
-0:02
25K
15.53 mi12:58:422:07:578:1420:26
8:26
+0:03
30K
18.64 mi13:25:572:35:128:2027:15
8:46
+0:20
20M
20.00 mi13:37:552:47:108:2111:58
8:48
+0:02
21M
21.00 mi13:47:012:56:168:249:06
9:06
+0:18
35K
21.75 mi13:53:183:02:338:246:17
8:24
-0:42
23M
23.00 mi14:04:243:13:398:2511:06
8:52
+0:28
24M
24.00 mi14:12:543:22:098:258:30
8:30
-0:22
40K
24.85 mi14:20:093:29:248:257:15
8:29
-0:01
25.2M
25.20 mi14:23:183:32:338:263:09
9:08
+0:39
Finish
26.22 mi14:31:313:40:468:268:13
8:04
-1:04

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

8:02 /mi

Average Pace

8:26 /mi

Slowest Pace

9:08 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:17:25

89% of race

Time at Steady Pace

23:21

11% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:25 /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 mi11:15:4324:588:0224:58
8:02
#16880
10K
6.21 mi11:40:4850:038:0325:05
8:04
#16948
15K
9.32 mi12:06:251:15:408:0725:37
8:15
#17219
20K
12.43 mi12:32:331:41:488:1126:08
8:25
#17290
Half
13.11 mi12:38:161:47:318:125:43
8:23
#17336
25K
15.53 mi12:58:422:07:578:1420:26
8:26
#17191
30K
18.64 mi13:25:572:35:128:2027:15
8:46
#16986
20M
20.00 mi13:37:552:47:108:2111:58
8:48
#16875
21M
21.00 mi13:47:012:56:168:249:06
9:06
#16661
35K
21.75 mi13:53:183:02:338:246:17
8:24
#16576
23M
23.00 mi14:04:243:13:398:2511:06
8:52
#16460
24M
24.00 mi14:12:543:22:098:258:30
8:30
#16363
40K
24.85 mi14:20:093:29:248:257:15
8:29
#16241
25.2M
25.20 mi14:23:183:32:338:263:09
9:08
#16172
Finish
26.22 mi14:31:313:40:468:268:13
8:04
#16053
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF50-54Seg. OverallSeg. FemalesSeg. F50-54
5K3.11 mi3.11 mi168805673567317704(Top 62%)6142(Top 50%)6142(Top 471%)
10K6.21 mi3.10 mi16948-685693-205693-2017028(Top 60%)5720(Top 47%)5720(Top 439%)
15K9.32 mi3.11 mi17219-2715842-1495842-14917704(Top 62%)6142(Top 50%)6142(Top 471%)
20K12.43 mi3.11 mi17290-715910-685910-6817626(Top 62%)6122(Top 50%)6122(Top 470%)
Half13.11 mi0.68 mi17336-465944-345944-3418479(Top 65%)6593(Top 54%)6593(Top 506%)
25K15.53 mi2.42 mi17191+1455876+685876+6816741(Top 59%)5715(Top 47%)5715(Top 439%)
30K18.64 mi3.11 mi16986+2055809+675809+6716435(Top 58%)5703(Top 47%)5703(Top 438%)
20M20.00 mi1.36 mi16875+1115767+425767+4215716(Top 55%)5429(Top 44%)5429(Top 417%)
21M21.00 mi1.00 mi16661+2145677+905677+9014136(Top 50%)4709(Top 39%)4709(Top 361%)
35K21.75 mi0.75 mi16576+855649+285649+2814889(Top 52%)5178(Top 42%)5178(Top 397%)
23M23.00 mi1.25 mi16460+1165606+435606+4315501(Top 55%)5603(Top 46%)5603(Top 430%)
24M24.00 mi1.00 mi16363+975584+225584+2214534(Top 51%)5119(Top 42%)5119(Top 393%)
40K24.85 mi0.85 mi16241+1225537+475537+4713347(Top 47%)4634(Top 38%)4634(Top 356%)
25.2M25.20 mi0.35 mi16172+695509+285509+2812662(Top 45%)4341(Top 36%)4341(Top 333%)
Finish26.22 mi1.02 mi16053+1195461+485461+4813355(Top 47%)4634(Top 38%)4634(Top 356%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 62%
×21stories
+97ft-345ft

Overall

17704

Females

6142

F50-54

6142

5K→10K

3.1 - 6.2 mi

Top 60%
×5stories
+79ft-138ft

Overall

17028

Females

5720

F50-54

5720

10K→15K

6.2 - 9.3 mi

Top 62%
×3stories
+67ft-78ft

Overall

17704

Females

6142

F50-54

6142

15K→20K

9.3 - 12.4 mi

Top 62%
×5stories
+106ft-86ft

Overall

17626

Females

6122

F50-54

6122

20K→Half

12.4 - 13.1 mi

Top 65%
×2stories
+19ft-37ft

Overall

18479

Females

6593

F50-54

6593

Half→25K

13.1 - 15.5 mi

Top 59%
×4stories
+66ft-88ft

Overall

16741

Females

5715

F50-54

5715

25K→30K

15.5 - 18.6 mi

Top 58%
×9stories
+181ft-148ft

Overall

16435

Females

5703

F50-54

5703

30K→20M

18.6 - 20.0 mi

Top 55%
×5stories
+64ft-50ft

Overall

15716

Females

5429

F50-54

5429

20M→21M

20.0 - 21.0 mi

Top 50%
×8stories
+106ft-24ft

Overall

14136

Females

4709

F50-54

4709

21M→35K

21.0 - 21.8 mi

Top 52%
×7stories
+17ft-86ft

Overall

14889

Females

5178

F50-54

5178

35K→23M

21.8 - 23.0 mi

Top 55%
×5stories
+23ft-63ft

Overall

15501

Females

5603

F50-54

5603

23M→24M

23.0 - 24.0 mi

Top 51%
×6stories
+12ft-82ft

Overall

14534

Females

5119

F50-54

5119

24M→40K

24.0 - 24.9 mi

Top 47%
×1story
+6ft-20ft

Overall

13347

Females

4634

F50-54

4634

40K→25.2M

24.9 - 25.2 mi

Top 45%
×1story
+13ft-16ft

Overall

12662

Females

4341

F50-54

4341

25.2M→Finish

25.2 - 26.2 mi

Top 47%
×2stories
+22ft-21ft

Overall

13355

Females

4634

F50-54

4634

Passing Analysis

Category:
Athletes Passed
2239
Passed By
1412
Net Change
+827
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#16880
5K → 10K264332-68#16880#16948
10K → 15K108379-271#16948#17219
15K → 20K167238-71#17219#17290
20K → Half1763-46#17290#17336
Half → 25K23893+145#17336#17191
25K → 30K314109+205#17191#16986
30K → 20M14736+111#16986#16875
20M → 21M23319+214#16875#16661
21M → 35K10621+85#16661#16576
35K → 23M16549+116#16576#16460
23M → 24M13235+97#16460#16363
24M → 40K13715+122#16363#16241
40K → 25.2M767+69#16241#16172
25.2M → Finish13516+119#16172#16053
TOTALS22391412+827
📊

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