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BOSTON MARATHON 2025

Erin Lynch

Bib: 22881•F

NS

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Masters (Masters Women)
#0 / 6759
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
8:47/mi
27:17
↑ 97↓ 3451.5%
10K· 6.21 mi
9:08/mi
55:39
↑ 79↓ 1380.4%
15K· 9.32 mi
9:22/mi
1:24:45
↑ 67↓ 78
20K· 12.43 mi
9:38/mi
1:54:40
↑ 106↓ 860.1%
Half· 13.11 mi
10:17/mi
2:01:41
↑ 19↓ 370.5%
25K· 15.53 mi
10:05/mi
2:26:08
↑ 66↓ 880.2%
30K· 18.64 mi
9:37/mi
2:56:02
↑ 181↓ 1480.2%
20M
10:37/mi
3:10:27
↑ 64↓ 500.2%
21M
9:51/mi
3:20:18
↑ 106↓ 241.6%
35K· 21.75 mi
9:21/mi
3:27:18
↑ 17↓ 861.7%
23M
11:01/mi
3:41:06
↑ 23↓ 630.6%
24M
9:20/mi
3:50:26
↓ 821.3%
40K· 24.85 mi
11:31/mi
4:00:17
↓ 200.3%
25.2M
10:15/mi
4:03:49
↑ 13↓ 160.2%
Finish· 26.22 mi
8:59/mi
4:12:58
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:01:41
Pace9:17 /mi
2nd Half
Distance13.11 mi
Time2:11:17
Pace10:01 /mi
📊Positive Split: 7.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:23:3527:178:4727:17
8:47
-
10K
6.21 mi11:51:5755:398:5728:22
9:08
+0:21
15K
9.32 mi12:21:031:24:459:0629:06
9:22
+0:14
20K
12.43 mi12:50:581:54:409:1429:55
9:38
+0:16
Half
13.11 mi12:57:592:01:419:177:01
10:17
+0:39
25K
15.53 mi13:22:262:26:089:2424:27
10:05
-0:12
30K
18.64 mi13:52:202:56:029:2729:54
9:37
-0:28
20M
20.00 mi14:06:453:10:279:3114:25
10:37
+1:00
21M
21.00 mi14:16:363:20:189:329:51
9:51
-0:46
35K
21.75 mi14:23:363:27:189:327:00
9:21
-0:30
23M
23.00 mi14:37:243:41:069:3713:48
11:01
+1:40
24M
24.00 mi14:46:443:50:269:369:20
9:20
-1:41
40K
24.85 mi14:56:354:00:179:409:51
11:31
+2:11
25.2M
25.20 mi15:00:074:03:499:413:32
10:15
-1:16
Finish
26.22 mi15:09:164:12:589:399:09
8:59
-1:16

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

8:47 /mi

Average Pace

9:39 /mi

Slowest Pace

11:31 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:04:48

26% of race

Time at Steady Pace

1:55:06

46% of race

Time at Slower Pace

1:13:04

29% of race

Average Pace: 9:39 /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 mi11:23:3527:178:4727:17
8:47
#21426
10K
6.21 mi11:51:5755:398:5728:22
9:08
#22238
15K
9.32 mi12:21:031:24:459:0629:06
9:22
#22669
20K
12.43 mi12:50:581:54:409:1429:55
9:38
#22900
Half
13.11 mi12:57:592:01:419:177:01
10:17
#23071
25K
15.53 mi13:22:262:26:089:2424:27
10:05
#23148
30K
18.64 mi13:52:202:56:029:2729:54
9:37
#22642
20M
20.00 mi14:06:453:10:279:3114:25
10:37
#22634
21M
21.00 mi14:16:363:20:189:329:51
9:51
#22370
35K
21.75 mi14:23:363:27:189:327:00
9:21
#22280
23M
23.00 mi14:37:243:41:069:3713:48
11:01
#22326
24M
24.00 mi14:46:443:50:269:369:20
9:20
#22190
40K
24.85 mi14:56:354:00:179:409:51
11:31
#22293
25.2M
25.20 mi15:00:074:03:499:413:32
10:15
#22229
Finish
26.22 mi15:09:164:12:589:399:09
8:59
#22115
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF45-49Seg. OverallSeg. FemalesSeg. F45-49
5K3.11 mi3.11 mi214268319831923389(Top 82%)9311(Top 76%)9311(Top 514%)
10K6.21 mi3.10 mi22238-8128749-4308749-43022931(Top 81%)9091(Top 74%)9091(Top 501%)
15K9.32 mi3.11 mi22669-4318946-1978946-19723389(Top 82%)9311(Top 76%)9311(Top 514%)
20K12.43 mi3.11 mi22900-2319071-1259071-12523300(Top 82%)9302(Top 76%)9302(Top 513%)
Half13.11 mi0.68 mi23071-1719165-949165-9425433(Top 90%)10505(Top 86%)10505(Top 579%)
25K15.53 mi2.42 mi23148-779218-539218-5323469(Top 83%)9465(Top 77%)9465(Top 522%)
30K18.64 mi3.11 mi22642+5068991+2278991+22720460(Top 72%)7916(Top 65%)7916(Top 437%)
20M20.00 mi1.36 mi22634+89006-159006-1522727(Top 80%)9267(Top 76%)9267(Top 511%)
21M21.00 mi1.00 mi22370+2648872+1348872+13417734(Top 62%)6667(Top 55%)6667(Top 368%)
35K21.75 mi0.75 mi22280+908834+388834+3819834(Top 70%)7900(Top 65%)7900(Top 436%)
23M23.00 mi1.25 mi22326-468898-648898-6423275(Top 82%)9749(Top 80%)9749(Top 538%)
24M24.00 mi1.00 mi22190+1368853+458853+4518992(Top 67%)7547(Top 62%)7547(Top 416%)
40K24.85 mi0.85 mi22293-1038915-628915-6224180(Top 85%)10255(Top 84%)10255(Top 566%)
25.2M25.20 mi0.35 mi22229+648885+308885+3018177(Top 64%)7252(Top 59%)7252(Top 400%)
Finish26.22 mi1.02 mi22115+1148845+408845+4018959(Top 67%)7580(Top 62%)7580(Top 418%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 82%
×21story building
+97ft-345ft

Overall

23389

Females

9311

F45-49

9311

5K→10K

3.1 - 6.2 mi

Top 81%
×5story building
+79ft-138ft

Overall

22931

Females

9091

F45-49

9091

10K→15K

6.2 - 9.3 mi

Top 82%
×3story building
+67ft-78ft

Overall

23389

Females

9311

F45-49

9311

15K→20K

9.3 - 12.4 mi

Top 82%
×5story building
+106ft-86ft

Overall

23300

Females

9302

F45-49

9302

20K→Half

12.4 - 13.1 mi

Top 90%
×2story building
+19ft-37ft

Overall

25433

Females

10505

F45-49

10505

Half→25K

13.1 - 15.5 mi

Top 83%
×4story building
+66ft-88ft

Overall

23469

Females

9465

F45-49

9465

25K→30K

15.5 - 18.6 mi

Top 72%
×9story building
+181ft-148ft

Overall

20460

Females

7916

F45-49

7916

30K→20M

18.6 - 20.0 mi

Top 80%
×5story building
+64ft-50ft

Overall

22727

Females

9267

F45-49

9267

20M→21M

20.0 - 21.0 mi

Top 62%
×8story building
+106ft-24ft

Overall

17734

Females

6667

F45-49

6667

21M→35K

21.0 - 21.8 mi

Top 70%
×7story building
+17ft-86ft

Overall

19834

Females

7900

F45-49

7900

35K→23M

21.8 - 23.0 mi

Top 82%
×5story building
+23ft-63ft

Overall

23275

Females

9749

F45-49

9749

23M→24M

23.0 - 24.0 mi

Top 67%
×6story building
+12ft-82ft

Overall

18992

Females

7547

F45-49

7547

24M→40K

24.0 - 24.9 mi

Top 85%
×1story
+6ft-20ft

Overall

24180

Females

10255

F45-49

10255

40K→25.2M

24.9 - 25.2 mi

Top 64%
×1story
+13ft-16ft

Overall

18177

Females

7252

F45-49

7252

25.2M→Finish

25.2 - 26.2 mi

Top 67%
×2story building
+22ft-21ft

Overall

18959

Females

7580

F45-49

7580

Passing Analysis

Category:
Athletes Passed
1708
Passed By
2397
Net Change
-689
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#21426
5K → 10K60872-812#21426#22238
10K → 15K71502-431#22238#22669
15K → 20K114345-231#22669#22900
20K → Half5176-171#22900#23071
Half → 25K101178-77#23071#23148
25K → 30K5126+506#23148#22642
30K → 20M7769+8#22642#22634
20M → 21M2651+264#22634#22370
21M → 35K966+90#22370#22280
35K → 23M64110-46#22280#22326
23M → 24M1415+136#22326#22190
24M → 40K18121-103#22190#22293
40K → 25.2M684+64#22293#22229
25.2M → Finish1162+114#22229#22115
TOTALS17082397-689
📊

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