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BOSTON MARATHON 2025

Erin Lynch

Bib: 27324•F

MA

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
8:42/mi
27:02
↑ 97↓ 3451.5%
10K· 6.21 mi
8:32/mi
53:32
↑ 79↓ 1380.4%
15K· 9.32 mi
8:35/mi
1:20:12
↑ 67↓ 78
20K· 12.43 mi
8:45/mi
1:47:23
↑ 106↓ 860.1%
Half· 13.11 mi
8:33/mi
1:53:13
↑ 19↓ 370.5%
25K· 15.53 mi
8:51/mi
2:14:40
↑ 66↓ 880.2%
30K· 18.64 mi
9:24/mi
2:43:53
↑ 181↓ 1480.2%
20M
9:47/mi
2:57:11
↑ 64↓ 500.2%
21M
10:00/mi
3:07:11
↑ 106↓ 241.6%
35K· 21.75 mi
9:33/mi
3:14:20
↑ 17↓ 861.7%
23M
10:05/mi
3:26:58
↑ 23↓ 630.6%
24M
9:17/mi
3:36:15
↓ 821.3%
40K· 24.85 mi
9:25/mi
3:44:18
↓ 200.3%
25.2M
10:15/mi
3:47:50
↑ 13↓ 160.2%
Finish· 26.22 mi
8:30/mi
3:56:30
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:53:13
Pace8:38 /mi
2nd Half
Distance13.11 mi
Time2:03:17
Pace9:24 /mi
📊Positive Split: 8.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:42:5727:028:4227:02
8:42
-
10K
6.21 mi12:09:2753:328:3726:30
8:32
-0:10
15K
9.32 mi12:36:071:20:128:3626:40
8:35
+0:03
20K
12.43 mi13:03:181:47:238:3827:11
8:45
+0:10
Half
13.11 mi13:09:081:53:138:385:50
8:33
-0:12
25K
15.53 mi13:30:352:14:408:4021:27
8:51
+0:18
30K
18.64 mi13:59:482:43:538:4729:13
9:24
+0:33
20M
20.00 mi14:13:062:57:118:5213:18
9:47
+0:23
21M
21.00 mi14:23:063:07:118:5510:00
10:00
+0:13
35K
21.75 mi14:30:153:14:208:567:09
9:33
-0:27
23M
23.00 mi14:42:533:26:589:0012:38
10:05
+0:32
24M
24.00 mi14:52:103:36:159:019:17
9:17
-0:48
40K
24.85 mi15:00:133:44:189:018:03
9:25
+0:08
25.2M
25.20 mi15:03:453:47:509:023:32
10:15
+0:50
Finish
26.22 mi15:12:253:56:309:028:40
8:30
-1:45

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

8:30 /mi

Average Pace

9:02 /mi

Slowest Pace

10:15 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:23:20

61% of race

Time at Steady Pace

53:42

23% of race

Time at Slower Pace

39:28

17% of race

Average Pace: 9:01 /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 mi11:42:5727:028:4227:02
8:42
#21032
10K
6.21 mi12:09:2753:328:3726:30
8:32
#20479
15K
9.32 mi12:36:071:20:128:3626:40
8:35
#20238
20K
12.43 mi13:03:181:47:238:3827:11
8:45
#20091
Half
13.11 mi13:09:081:53:138:385:50
8:33
#20046
25K
15.53 mi13:30:352:14:408:4021:27
8:51
#19884
30K
18.64 mi13:59:482:43:538:4729:13
9:24
#19827
20M
20.00 mi14:13:062:57:118:5213:18
9:47
#19878
21M
21.00 mi14:23:063:07:118:5510:00
10:00
#19766
35K
21.75 mi14:30:153:14:208:567:09
9:33
#19809
23M
23.00 mi14:42:533:26:589:0012:38
10:05
#19909
24M
24.00 mi14:52:103:36:159:019:17
9:17
#19856
40K
24.85 mi15:00:133:44:189:018:03
9:25
#19794
25.2M
25.20 mi15:03:453:47:509:023:32
10:15
#19772
Finish
26.22 mi15:12:253:56:309:028:40
8:30
#19659
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF45-49Seg. OverallSeg. FemalesSeg. F45-49
5K3.11 mi3.11 mi210328101810119842(Top 70%)7358(Top 60%)7358(Top 406%)
10K6.21 mi3.10 mi20479+5537762+3397762+33919984(Top 70%)7456(Top 61%)7456(Top 411%)
15K9.32 mi3.11 mi20238+2417605+1577605+15719842(Top 70%)7358(Top 60%)7358(Top 406%)
20K12.43 mi3.11 mi20091+1477522+837522+8319693(Top 69%)7313(Top 60%)7313(Top 403%)
Half13.11 mi0.68 mi20046+457501+217501+2119576(Top 69%)7232(Top 59%)7232(Top 399%)
25K15.53 mi2.42 mi19884+1627415+867415+8619201(Top 68%)7086(Top 58%)7086(Top 391%)
30K18.64 mi3.11 mi19827+577418-37418-319555(Top 69%)7423(Top 61%)7423(Top 409%)
20M20.00 mi1.36 mi19878-517481-637481-6320262(Top 71%)7941(Top 65%)7941(Top 438%)
21M21.00 mi1.00 mi19766+1127439+427439+4218317(Top 64%)6964(Top 57%)6964(Top 384%)
35K21.75 mi0.75 mi19809-437480-417480-4120535(Top 72%)8253(Top 67%)8253(Top 455%)
23M23.00 mi1.25 mi19909-1007570-907570-9020786(Top 73%)8443(Top 69%)8443(Top 466%)
24M24.00 mi1.00 mi19856+537571-17571-118766(Top 66%)7423(Top 61%)7423(Top 409%)
40K24.85 mi0.85 mi19794+627551+207551+2018376(Top 65%)7325(Top 60%)7325(Top 404%)
25.2M25.20 mi0.35 mi19772+227540+117540+1118147(Top 64%)7222(Top 59%)7222(Top 398%)
Finish26.22 mi1.02 mi19659+1137497+437497+4316294(Top 57%)6198(Top 51%)6198(Top 342%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 70%
×21story building
+97ft-345ft

Overall

19842

Females

7358

F45-49

7358

5K→10K

3.1 - 6.2 mi

Top 70%
×5story building
+79ft-138ft

Overall

19984

Females

7456

F45-49

7456

10K→15K

6.2 - 9.3 mi

Top 70%
×3story building
+67ft-78ft

Overall

19842

Females

7358

F45-49

7358

15K→20K

9.3 - 12.4 mi

Top 69%
×5story building
+106ft-86ft

Overall

19693

Females

7313

F45-49

7313

20K→Half

12.4 - 13.1 mi

Top 69%
×2story building
+19ft-37ft

Overall

19576

Females

7232

F45-49

7232

Half→25K

13.1 - 15.5 mi

Top 68%
×4story building
+66ft-88ft

Overall

19201

Females

7086

F45-49

7086

25K→30K

15.5 - 18.6 mi

Top 69%
×9story building
+181ft-148ft

Overall

19555

Females

7423

F45-49

7423

30K→20M

18.6 - 20.0 mi

Top 71%
×5story building
+64ft-50ft

Overall

20262

Females

7941

F45-49

7941

20M→21M

20.0 - 21.0 mi

Top 64%
×8story building
+106ft-24ft

Overall

18317

Females

6964

F45-49

6964

21M→35K

21.0 - 21.8 mi

Top 72%
×7story building
+17ft-86ft

Overall

20535

Females

8253

F45-49

8253

35K→23M

21.8 - 23.0 mi

Top 73%
×5story building
+23ft-63ft

Overall

20786

Females

8443

F45-49

8443

23M→24M

23.0 - 24.0 mi

Top 66%
×6story building
+12ft-82ft

Overall

18766

Females

7423

F45-49

7423

24M→40K

24.0 - 24.9 mi

Top 65%
×1story
+6ft-20ft

Overall

18376

Females

7325

F45-49

7325

40K→25.2M

24.9 - 25.2 mi

Top 64%
×1story
+13ft-16ft

Overall

18147

Females

7222

F45-49

7222

25.2M→Finish

25.2 - 26.2 mi

Top 57%
×2story building
+22ft-21ft

Overall

16294

Females

6198

F45-49

6198

Passing Analysis

Category:
Athletes Passed
2445
Passed By
1072
Net Change
+1373
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#21032
5K → 10K658105+553#21032#20479
10K → 15K32382+241#20479#20238
15K → 20K256109+147#20238#20091
20K → Half549+45#20091#20046
Half → 25K23573+162#20046#19884
25K → 30K248191+57#19884#19827
30K → 20M85136-51#19827#19878
20M → 21M14533+112#19878#19766
21M → 35K3578-43#19766#19809
35K → 23M62162-100#19809#19909
23M → 24M9744+53#19909#19856
24M → 40K8321+62#19856#19794
40K → 25.2M3614+22#19794#19772
25.2M → Finish12815+113#19772#19659
TOTALS24451072+1373
📊

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