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BOSTON MARATHON 2025

Erika Lilley

Bib: 31108•F

CA

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
9:11/mi
28:31
↑ 97↓ 3451.5%
10K· 6.21 mi
8:51/mi
56:01
↑ 79↓ 1380.4%
15K· 9.32 mi
9:18/mi
1:24:54
↑ 67↓ 78
20K· 12.43 mi
9:27/mi
1:54:16
↑ 106↓ 860.1%
Half· 13.11 mi
8:43/mi
2:00:13
↑ 19↓ 370.5%
25K· 15.53 mi
9:03/mi
2:22:09
↑ 66↓ 880.2%
30K· 18.64 mi
9:27/mi
2:51:32
↑ 181↓ 1480.2%
20M
9:19/mi
3:04:11
↑ 64↓ 500.2%
21M
9:53/mi
3:14:04
↑ 106↓ 241.6%
35K· 21.75 mi
9:03/mi
3:20:50
↑ 17↓ 861.7%
23M
9:21/mi
3:32:33
↑ 23↓ 630.6%
24M
8:50/mi
3:41:23
↓ 821.3%
40K· 24.85 mi
8:40/mi
3:48:48
↓ 200.3%
25.2M
9:23/mi
3:52:02
↑ 13↓ 160.2%
Finish· 26.22 mi
8:04/mi
4:00:15
↑ 22↓ 21

The Course

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Half Splits

1st Half· via Half⚖️ Balanced
Distance13.11 mi
Time2:00:13
Pace9:10 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time2:00:02
Pace9:09 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:53:1628:319:1128:31
9:11
-
10K
6.21 mi12:20:4656:019:0127:30
8:51
-0:20
15K
9.32 mi12:49:391:24:549:0728:53
9:18
+0:27
20K
12.43 mi13:19:011:54:169:1229:22
9:27
+0:09
Half
13.11 mi13:24:582:00:139:105:57
8:43
-0:44
25K
15.53 mi13:46:542:22:099:0921:56
9:03
+0:20
30K
18.64 mi14:16:172:51:329:1229:23
9:27
+0:24
20M
20.00 mi14:28:563:04:119:1312:39
9:19
-0:08
21M
21.00 mi14:38:493:14:049:149:53
9:53
+0:34
35K
21.75 mi14:45:353:20:509:146:46
9:03
-0:50
23M
23.00 mi14:57:183:32:339:1411:43
9:21
+0:18
24M
24.00 mi15:06:083:41:239:138:50
8:50
-0:31
40K
24.85 mi15:13:333:48:489:127:25
8:40
-0:10
25.2M
25.20 mi15:16:473:52:029:123:14
9:23
+0:43
Finish
26.22 mi15:25:004:00:159:108:13
8:04
-1:19

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

8:04 /mi

Average Pace

9:10 /mi

Slowest Pace

9:53 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

57:55

24% of race

Time at Steady Pace

1:53:42

47% of race

Time at Slower Pace

1:08:38

29% of race

Average Pace: 9:10 /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 mi11:53:1628:319:1128:31
9:11
#23152
10K
6.21 mi12:20:4656:019:0127:30
8:51
#22491
15K
9.32 mi12:49:391:24:549:0728:53
9:18
#22740
20K
12.43 mi13:19:011:54:169:1229:22
9:27
#22766
Half
13.11 mi13:24:582:00:139:105:57
8:43
#22648
25K
15.53 mi13:46:542:22:099:0921:56
9:03
#22248
30K
18.64 mi14:16:172:51:329:1229:23
9:27
#21768
20M
20.00 mi14:28:563:04:119:1312:39
9:19
#21510
21M
21.00 mi14:38:493:14:049:149:53
9:53
#21296
35K
21.75 mi14:45:353:20:509:146:46
9:03
#21182
23M
23.00 mi14:57:183:32:339:1411:43
9:21
#20994
24M
24.00 mi15:06:083:41:239:138:50
8:50
#20833
40K
24.85 mi15:13:333:48:489:127:25
8:40
#20646
25.2M
25.20 mi15:16:473:52:029:123:14
9:23
#20567
Finish
26.22 mi15:25:004:00:159:108:13
8:04
#20387
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF45-49Seg. OverallSeg. FemalesSeg. F45-49
5K3.11 mi3.11 mi231529247924723210(Top 82%)9210(Top 75%)9210(Top 508%)
10K6.21 mi3.10 mi22491+6618884+3638884+36321651(Top 76%)8397(Top 69%)8397(Top 463%)
15K9.32 mi3.11 mi22740-2498977-938977-9323210(Top 82%)9210(Top 75%)9210(Top 508%)
20K12.43 mi3.11 mi22766-268989-128989-1222751(Top 80%)9004(Top 74%)9004(Top 497%)
Half13.11 mi0.68 mi22648+1188930+598930+5920532(Top 72%)7780(Top 64%)7780(Top 429%)
25K15.53 mi2.42 mi22248+4008741+1898741+18920121(Top 71%)7602(Top 62%)7602(Top 419%)
30K18.64 mi3.11 mi21768+4808491+2508491+25019782(Top 70%)7540(Top 62%)7540(Top 416%)
20M20.00 mi1.36 mi21510+2588373+1188373+11818365(Top 65%)6938(Top 57%)6938(Top 383%)
21M21.00 mi1.00 mi21296+2148281+928281+9217867(Top 63%)6727(Top 55%)6727(Top 371%)
35K21.75 mi0.75 mi21182+1148234+478234+4718506(Top 65%)7206(Top 59%)7206(Top 397%)
23M23.00 mi1.25 mi20994+1888160+748160+7418075(Top 64%)7024(Top 57%)7024(Top 387%)
24M24.00 mi1.00 mi20833+1618085+758085+7516544(Top 58%)6242(Top 51%)6242(Top 344%)
40K24.85 mi0.85 mi20646+1878002+838002+8314527(Top 51%)5272(Top 43%)5272(Top 291%)
25.2M25.20 mi0.35 mi20567+797969+337969+3314025(Top 49%)5068(Top 41%)5068(Top 280%)
Finish26.22 mi1.02 mi20387+1807882+877882+8713375(Top 47%)4654(Top 38%)4654(Top 257%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 82%
×21story building
+97ft-345ft

Overall

23210

Females

9210

F45-49

9210

5K→10K

3.1 - 6.2 mi

Top 76%
×5story building
+79ft-138ft

Overall

21651

Females

8397

F45-49

8397

10K→15K

6.2 - 9.3 mi

Top 82%
×3story building
+67ft-78ft

Overall

23210

Females

9210

F45-49

9210

15K→20K

9.3 - 12.4 mi

Top 80%
×5story building
+106ft-86ft

Overall

22751

Females

9004

F45-49

9004

20K→Half

12.4 - 13.1 mi

Top 72%
×2story building
+19ft-37ft

Overall

20532

Females

7780

F45-49

7780

Half→25K

13.1 - 15.5 mi

Top 71%
×4story building
+66ft-88ft

Overall

20121

Females

7602

F45-49

7602

25K→30K

15.5 - 18.6 mi

Top 70%
×9story building
+181ft-148ft

Overall

19782

Females

7540

F45-49

7540

30K→20M

18.6 - 20.0 mi

Top 65%
×5story building
+64ft-50ft

Overall

18365

Females

6938

F45-49

6938

20M→21M

20.0 - 21.0 mi

Top 63%
×8story building
+106ft-24ft

Overall

17867

Females

6727

F45-49

6727

21M→35K

21.0 - 21.8 mi

Top 65%
×7story building
+17ft-86ft

Overall

18506

Females

7206

F45-49

7206

35K→23M

21.8 - 23.0 mi

Top 64%
×5story building
+23ft-63ft

Overall

18075

Females

7024

F45-49

7024

23M→24M

23.0 - 24.0 mi

Top 58%
×6story building
+12ft-82ft

Overall

16544

Females

6242

F45-49

6242

24M→40K

24.0 - 24.9 mi

Top 51%
×1story
+6ft-20ft

Overall

14527

Females

5272

F45-49

5272

40K→25.2M

24.9 - 25.2 mi

Top 49%
×1story
+13ft-16ft

Overall

14025

Females

5068

F45-49

5068

25.2M→Finish

25.2 - 26.2 mi

Top 47%
×2story building
+22ft-21ft

Overall

13375

Females

4654

F45-49

4654

Passing Analysis

Category:
Athletes Passed
3432
Passed By
667
Net Change
+2765
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#23152
5K → 10K70140+661#23152#22491
10K → 15K104353-249#22491#22740
15K → 20K176202-26#22740#22766
20K → Half1213+118#22766#22648
Half → 25K4077+400#22648#22248
25K → 30K50525+480#22248#21768
30K → 20M2646+258#21768#21510
20M → 21M2217+214#21510#21296
21M → 35K1195+114#21296#21182
35K → 23M1979+188#21182#20994
23M → 24M1676+161#20994#20833
24M → 40K1892+187#20833#20646
40K → 25.2M790+79#20646#20567
25.2M → Finish1822+180#20567#20387
TOTALS3432667+2765
📊

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