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BOSTON MARATHON 2025

Lila Nair

Bib: 29938•F

NY

0:00
0:00
/ mi
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Division (F18-39)
#0 / 5469
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
9:53/mi
30:42
↑ 97↓ 3451.5%
10K· 6.21 mi
9:25/mi
59:58
↑ 79↓ 1380.4%
15K· 9.32 mi
9:07/mi
1:28:17
↑ 67↓ 78
20K· 12.43 mi
9:05/mi
1:56:29
↑ 106↓ 860.1%
Half· 13.11 mi
9:02/mi
2:02:39
↑ 19↓ 370.5%
25K· 15.53 mi
8:52/mi
2:24:09
↑ 66↓ 880.2%
30K· 18.64 mi
9:49/mi
2:54:40
↑ 181↓ 1480.2%
20M
9:44/mi
3:07:54
↑ 64↓ 500.2%
21M
10:21/mi
3:18:15
↑ 106↓ 241.6%
35K· 21.75 mi
9:21/mi
3:25:15
↑ 17↓ 861.7%
23M
9:41/mi
3:37:23
↑ 23↓ 630.6%
24M
9:27/mi
3:46:50
↓ 821.3%
40K· 24.85 mi
9:56/mi
3:55:20
↓ 200.3%
25.2M
10:38/mi
3:59:00
↑ 13↓ 160.2%
Finish· 26.22 mi
9:23/mi
4:08:34
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:02:39
Pace9:21 /mi
2nd Half
Distance13.11 mi
Time2:05:55
Pace9:36 /mi
📊Positive Split: 2.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:53:5930:429:5330:42
9:53
-
10K
6.21 mi12:23:1559:589:3929:16
9:25
-0:28
15K
9.32 mi12:51:341:28:179:2828:19
9:07
-0:18
20K
12.43 mi13:19:461:56:299:2228:12
9:05
-0:02
Half
13.11 mi13:25:562:02:399:216:10
9:02
-0:03
25K
15.53 mi13:47:262:24:099:1721:30
8:52
-0:10
30K
18.64 mi14:17:572:54:409:2230:31
9:49
+0:57
20M
20.00 mi14:31:113:07:549:2413:14
9:44
-0:05
21M
21.00 mi14:41:323:18:159:2610:21
10:21
+0:37
35K
21.75 mi14:48:323:25:159:267:00
9:21
-1:00
23M
23.00 mi15:00:403:37:239:2712:08
9:41
+0:20
24M
24.00 mi15:10:073:46:509:279:27
9:27
-0:14
40K
24.85 mi15:18:373:55:209:288:30
9:56
+0:29
25.2M
25.20 mi15:22:173:59:009:293:40
10:38
+0:42
Finish
26.22 mi15:31:514:08:349:299:34
9:23
-1:15

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

8:52 /mi

Average Pace

9:29 /mi

Slowest Pace

10:38 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:44:50

66% of race

Time at Steady Pace

1:20:04

32% of race

Time at Slower Pace

3:40

1% of race

Average Pace: 9:29 /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 mi11:53:5930:429:5330:42
9:53
#25304
10K
6.21 mi12:23:1559:589:3929:16
9:25
#24610
15K
9.32 mi12:51:341:28:179:2828:19
9:07
#23960
20K
12.43 mi13:19:461:56:299:2228:12
9:05
#23361
Half
13.11 mi13:25:562:02:399:216:10
9:02
#23297
25K
15.53 mi13:47:262:24:099:1721:30
8:52
#22719
30K
18.64 mi14:17:572:54:409:2230:31
9:49
#22387
20M
20.00 mi14:31:113:07:549:2413:14
9:44
#22236
21M
21.00 mi14:41:323:18:159:2610:21
10:21
#22052
35K
21.75 mi14:48:323:25:159:267:00
9:21
#21954
23M
23.00 mi15:00:403:37:239:2712:08
9:41
#21797
24M
24.00 mi15:10:073:46:509:279:27
9:27
#21698
40K
24.85 mi15:18:373:55:209:288:30
9:56
#21632
25.2M
25.20 mi15:22:173:59:009:293:40
10:38
#21590
Finish
26.22 mi15:31:514:08:349:299:34
9:23
#21553
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi25304103751037522525(Top 79%)8846(Top 72%)8846(Top 162%)
10K6.21 mi3.10 mi24610+69410011+36410011+36423886(Top 84%)9613(Top 79%)9613(Top 176%)
15K9.32 mi3.11 mi23960+6509652+3599652+35922525(Top 79%)8846(Top 72%)8846(Top 162%)
20K12.43 mi3.11 mi23361+5999319+3339319+33321362(Top 75%)8240(Top 67%)8240(Top 151%)
Half13.11 mi0.68 mi23297+649284+359284+3522006(Top 77%)8611(Top 70%)8611(Top 157%)
25K15.53 mi2.42 mi22719+5788985+2998985+29919288(Top 68%)7140(Top 58%)7140(Top 131%)
30K18.64 mi3.11 mi22387+3328843+1428843+14221065(Top 74%)8266(Top 68%)8266(Top 151%)
20M20.00 mi1.36 mi22236+1518776+678776+6720087(Top 71%)7844(Top 64%)7844(Top 143%)
21M21.00 mi1.00 mi22052+1848693+838693+8319571(Top 69%)7672(Top 63%)7672(Top 140%)
35K21.75 mi0.75 mi21954+988657+368657+3619830(Top 70%)7896(Top 65%)7896(Top 144%)
23M23.00 mi1.25 mi21797+1578604+538604+5319424(Top 68%)7745(Top 63%)7745(Top 142%)
24M24.00 mi1.00 mi21698+998570+348570+3419465(Top 69%)7815(Top 64%)7815(Top 143%)
40K24.85 mi0.85 mi21632+668554+168554+1620285(Top 71%)8305(Top 68%)8305(Top 152%)
25.2M25.20 mi0.35 mi21590+428537+178537+1719553(Top 69%)7940(Top 65%)7940(Top 145%)
Finish26.22 mi1.02 mi21553+378529+88529+820774(Top 73%)8543(Top 70%)8543(Top 156%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 79%
×21story building
+97ft-345ft

Overall

22525

Females

8846

F18-39

8846

5K→10K

3.1 - 6.2 mi

Top 84%
×5story building
+79ft-138ft

Overall

23886

Females

9613

F18-39

9613

10K→15K

6.2 - 9.3 mi

Top 79%
×3story building
+67ft-78ft

Overall

22525

Females

8846

F18-39

8846

15K→20K

9.3 - 12.4 mi

Top 75%
×5story building
+106ft-86ft

Overall

21362

Females

8240

F18-39

8240

20K→Half

12.4 - 13.1 mi

Top 77%
×2story building
+19ft-37ft

Overall

22006

Females

8611

F18-39

8611

Half→25K

13.1 - 15.5 mi

Top 68%
×4story building
+66ft-88ft

Overall

19288

Females

7140

F18-39

7140

25K→30K

15.5 - 18.6 mi

Top 74%
×9story building
+181ft-148ft

Overall

21065

Females

8266

F18-39

8266

30K→20M

18.6 - 20.0 mi

Top 71%
×5story building
+64ft-50ft

Overall

20087

Females

7844

F18-39

7844

20M→21M

20.0 - 21.0 mi

Top 69%
×8story building
+106ft-24ft

Overall

19571

Females

7672

F18-39

7672

21M→35K

21.0 - 21.8 mi

Top 70%
×7story building
+17ft-86ft

Overall

19830

Females

7896

F18-39

7896

35K→23M

21.8 - 23.0 mi

Top 68%
×5story building
+23ft-63ft

Overall

19424

Females

7745

F18-39

7745

23M→24M

23.0 - 24.0 mi

Top 69%
×6story building
+12ft-82ft

Overall

19465

Females

7815

F18-39

7815

24M→40K

24.0 - 24.9 mi

Top 71%
×1story
+6ft-20ft

Overall

20285

Females

8305

F18-39

8305

40K→25.2M

24.9 - 25.2 mi

Top 69%
×1story
+13ft-16ft

Overall

19553

Females

7940

F18-39

7940

25.2M→Finish

25.2 - 26.2 mi

Top 73%
×2story building
+22ft-21ft

Overall

20774

Females

8543

F18-39

8543

Passing Analysis

Category:
Athletes Passed
3936
Passed By
185
Net Change
+3751
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#25304
5K → 10K71117+694#25304#24610
10K → 15K6566+650#24610#23960
15K → 20K6056+599#23960#23361
20K → Half728+64#23361#23297
Half → 25K5791+578#23297#22719
25K → 30K37038+332#22719#22387
30K → 20M16211+151#22387#22236
20M → 21M1906+184#22236#22052
21M → 35K1035+98#22052#21954
35K → 23M17013+157#21954#21797
23M → 24M11415+99#21797#21698
24M → 40K9024+66#21698#21632
40K → 25.2M464+42#21632#21590
25.2M → Finish6831+37#21590#21553
TOTALS3936185+3751
📊

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