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BOSTON MARATHON 2025

Liffey Daniels

Bib: 19101•F

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 44%
Gender (Female)
#0 / 12228
Top 29%
Division (F18-39)
#0 / 5469
Top 48%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
24:43
Rank: #16241
Start → 5K
24:43 | 7:57/mi
10K· 6.21 mi
49:04
Rank: #15642 (+599)
5K → 10K
24:21 | 7:50/mi
15K· 9.32 mi
1:13:37
Rank: #15479 (+163)
10K → 15K
24:33 | 7:54/mi
20K· 12.43 mi
1:38:16
Rank: #15161 (+318)
15K → 20K
24:39 | 7:56/mi
Half· 13.11 mi
1:43:29
Rank: #15038 (+123)
20K → Half
5:13 | 7:39/mi
25K· 15.53 mi
2:02:39
Rank: #14683 (+355)
Half → 25K
19:10 | 7:54/mi
30K· 18.64 mi
2:27:44
Rank: #14074 (+609)
25K → 30K
25:05 | 8:04/mi
20M
2:38:39
Rank: #13770 (+304)
30K → 20M
10:55 | 8:02/mi
21M
2:47:03
Rank: #13517 (+253)
20M → 21M
8:24 | 8:24/mi
35K· 21.75 mi
2:52:50
Rank: #13391 (+126)
21M → 35K
5:47 | 7:44/mi
23M
3:02:52
Rank: #13162 (+229)
35K → 23M
10:02 | 8:01/mi
24M
3:10:38
Rank: #12984 (+178)
23M → 24M
7:46 | 7:46/mi
40K· 24.85 mi
3:17:21
Rank: #12822 (+162)
24M → 40K
6:43 | 7:51/mi
25.2M
3:20:23
Rank: #12767 (+55)
40K → 25.2M
3:02 | 8:48/mi
Finish· 26.22 mi
3:28:09
Rank: #12635 (+132)
25.2M → Finish
7:46 | 7:37/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:43:29
Pace7:54 /mi
2nd Half
Distance13.11 mi
Time1:44:40
Pace7:59 /mi
📊Positive Split: 1.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:15:2324:437:5724:43
7:57
-
10K
6.21 mi11:39:4449:047:5424:21
7:50
-0:07
15K
9.32 mi12:04:171:13:377:5424:33
7:54
+0:04
20K
12.43 mi12:28:561:38:167:5424:39
7:56
+0:02
Half
13.11 mi12:34:091:43:297:545:13
7:39
-0:17
25K
15.53 mi12:53:192:02:397:5419:10
7:54
+0:15
30K
18.64 mi13:18:242:27:447:5625:05
8:04
+0:10
20M
20.00 mi13:29:192:38:397:5610:55
8:02
-0:02
21M
21.00 mi13:37:432:47:037:578:24
8:24
+0:22
35K
21.75 mi13:43:302:52:507:575:47
7:44
-0:40
23M
23.00 mi13:53:323:02:527:5710:02
8:01
+0:17
24M
24.00 mi14:01:183:10:387:577:46
7:46
-0:15
40K
24.85 mi14:08:013:17:217:566:43
7:51
+0:05
25.2M
25.20 mi14:11:033:20:237:573:02
8:48
+0:57
Finish
26.22 mi14:18:493:28:097:577:46
7:37
-1:11

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

7:37 /mi

Average Pace

7:57 /mi

Slowest Pace

8:48 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:16:43

95% of race

Time at Steady Pace

11:26

5% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:56 /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 mi11:15:2324:437:5724:43
7:57
#16241
10K
6.21 mi11:39:4449:047:5424:21
7:50
#15642
15K
9.32 mi12:04:171:13:377:5424:33
7:54
#15479
20K
12.43 mi12:28:561:38:167:5424:39
7:56
#15161
Half
13.11 mi12:34:091:43:297:545:13
7:39
#15038
25K
15.53 mi12:53:192:02:397:5419:10
7:54
#14683
30K
18.64 mi13:18:242:27:447:5625:05
8:04
#14074
20M
20.00 mi13:29:192:38:397:5610:55
8:02
#13770
21M
21.00 mi13:37:432:47:037:578:24
8:24
#13517
35K
21.75 mi13:43:302:52:507:575:47
7:44
#13391
23M
23.00 mi13:53:323:02:527:5710:02
8:01
#13162
24M
24.00 mi14:01:183:10:387:577:46
7:46
#12984
40K
24.85 mi14:08:013:17:217:566:43
7:51
#12822
25.2M
25.20 mi14:11:033:20:237:573:02
8:48
#12767
Finish
26.22 mi14:18:493:28:097:577:46
7:37
#12635
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi162415286528615250(Top 54%)4719(Top 39%)4719(Top 86%)
10K6.21 mi3.10 mi15642+5994918+3684918+36815162(Top 53%)4637(Top 38%)4637(Top 85%)
15K9.32 mi3.11 mi15479+1634831+874831+8715250(Top 54%)4719(Top 39%)4719(Top 86%)
20K12.43 mi3.11 mi15161+3184673+1584673+15814404(Top 51%)4315(Top 35%)4315(Top 79%)
Half13.11 mi0.68 mi15038+1234605+684605+6813028(Top 46%)3514(Top 29%)3514(Top 64%)
25K15.53 mi2.42 mi14683+3554436+1694436+16913139(Top 46%)3741(Top 31%)3741(Top 68%)
30K18.64 mi3.11 mi14074+6094149+2874149+28711925(Top 42%)3259(Top 27%)3259(Top 60%)
20M20.00 mi1.36 mi13770+3044007+1424007+14210699(Top 38%)2792(Top 23%)2792(Top 51%)
21M21.00 mi1.00 mi13517+2533899+1083899+1089890(Top 35%)2574(Top 21%)2574(Top 47%)
35K21.75 mi0.75 mi13391+1263851+483851+4810370(Top 37%)2795(Top 23%)2795(Top 51%)
23M23.00 mi1.25 mi13162+2293765+863765+8610164(Top 36%)2831(Top 23%)2831(Top 52%)
24M24.00 mi1.00 mi12984+1783694+713694+719625(Top 34%)2631(Top 22%)2631(Top 48%)
40K24.85 mi0.85 mi12822+1623632+623632+629228(Top 32%)2572(Top 21%)2572(Top 47%)
25.2M25.20 mi0.35 mi12767+553613+193613+1910686(Top 38%)3342(Top 27%)3342(Top 61%)
Finish26.22 mi1.02 mi12635+1323571+423571+4210146(Top 36%)3066(Top 25%)3066(Top 56%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 54%
×21stories
+97ft-345ft

Overall

15250

Females

4719

F18-39

4719

5K→10K

3.1 - 6.2 mi

Top 53%
×5stories
+79ft-138ft

Overall

15162

Females

4637

F18-39

4637

10K→15K

6.2 - 9.3 mi

Top 54%
×3stories
+67ft-78ft

Overall

15250

Females

4719

F18-39

4719

15K→20K

9.3 - 12.4 mi

Top 51%
×5stories
+106ft-86ft

Overall

14404

Females

4315

F18-39

4315

20K→Half

12.4 - 13.1 mi

Top 46%
×2stories
+19ft-37ft

Overall

13028

Females

3514

F18-39

3514

Half→25K

13.1 - 15.5 mi

Top 46%
×4stories
+66ft-88ft

Overall

13139

Females

3741

F18-39

3741

25K→30K

15.5 - 18.6 mi

Top 42%
×9stories
+181ft-148ft

Overall

11925

Females

3259

F18-39

3259

30K→20M

18.6 - 20.0 mi

Top 38%
×5stories
+64ft-50ft

Overall

10699

Females

2792

F18-39

2792

20M→21M

20.0 - 21.0 mi

Top 35%
×8stories
+106ft-24ft

Overall

9890

Females

2574

F18-39

2574

21M→35K

21.0 - 21.8 mi

Top 37%
×7stories
+17ft-86ft

Overall

10370

Females

2795

F18-39

2795

35K→23M

21.8 - 23.0 mi

Top 36%
×5stories
+23ft-63ft

Overall

10164

Females

2831

F18-39

2831

23M→24M

23.0 - 24.0 mi

Top 34%
×6stories
+12ft-82ft

Overall

9625

Females

2631

F18-39

2631

24M→40K

24.0 - 24.9 mi

Top 32%
×1story
+6ft-20ft

Overall

9228

Females

2572

F18-39

2572

40K→25.2M

24.9 - 25.2 mi

Top 38%
×1story
+13ft-16ft

Overall

10686

Females

3342

F18-39

3342

25.2M→Finish

25.2 - 26.2 mi

Top 36%
×2stories
+22ft-21ft

Overall

10146

Females

3066

F18-39

3066

Passing Analysis

Category:
Athletes Passed
4008
Passed By
402
Net Change
+3606
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#16241
5K → 10K701102+599#16241#15642
10K → 15K276113+163#15642#15479
15K → 20K37557+318#15479#15161
20K → Half1285+123#15161#15038
Half → 25K37924+355#15038#14683
25K → 30K62819+609#14683#14074
30K → 20M3095+304#14074#13770
20M → 21M26310+253#13770#13517
21M → 35K1337+126#13517#13391
35K → 23M24213+229#13391#13162
23M → 24M1868+178#13162#12984
24M → 40K1675+162#12984#12822
40K → 25.2M6611+55#12822#12767
25.2M → Finish15523+132#12767#12635
TOTALS4008402+3606
📊

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