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BOSTON MARATHON 2025

Kathryn Liddiard

Bib: 19453•F

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 32%
Gender (Female)
#0 / 12228
Top 15%
Division (F18-39)
#0 / 5469
Top 27%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
23:09
Rank: #11801
Start → 5K
7:27/mi
23:09 split
10K· 6.21 mi
46:00
Rank: #11264 (+537)
5K → 10K
7:21/mi
22:51 split
15K· 9.32 mi
1:09:03
Rank: #11143 (+121)
10K → 15K
7:25/mi
23:03 split
20K· 12.43 mi
1:32:25
Rank: #11084 (+59)
15K → 20K
7:31/mi
23:22 split
Half· 13.11 mi
1:37:27
Rank: #11069 (+15)
20K → Half
7:23/mi
5:02 split
25K· 15.53 mi
1:55:40
Rank: #10860 (+209)
Half → 25K
7:31/mi
18:13 split
30K· 18.64 mi
2:19:12
Rank: #10290 (+570)
25K → 30K
7:34/mi
23:32 split
20M
2:29:33
Rank: #10033 (+257)
30K → 20M
7:37/mi
10:21 split
21M
2:37:38
Rank: #9844 (+189)
20M → 21M
8:05/mi
8:05 split
35K· 21.75 mi
2:43:08
Rank: #9734 (+110)
21M → 35K
7:21/mi
5:30 split
23M
2:52:40
Rank: #9564 (+170)
35K → 23M
7:37/mi
9:32 split
24M
3:00:16
Rank: #9465 (+99)
23M → 24M
7:36/mi
7:36 split
40K· 24.85 mi
3:06:47
Rank: #9372 (+93)
24M → 40K
7:37/mi
6:31 split
25.2M
3:09:38
Rank: #9306 (+66)
40K → 25.2M
8:16/mi
2:51 split
Finish· 26.22 mi
3:16:54
Rank: #9177 (+129)
25.2M → Finish
7:08/mi
7:16 split

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:37:27
Pace7:26 /mi
2nd Half
Distance13.11 mi
Time1:39:27
Pace7:35 /mi
📊Positive Split: 2.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:14:3223:097:2723:09
7:27
-
10K
6.21 mi11:37:2346:007:2422:51
7:21
-0:06
15K
9.32 mi12:00:261:09:037:2523:03
7:25
+0:04
20K
12.43 mi12:23:481:32:257:2623:22
7:31
+0:06
Half
13.11 mi12:28:501:37:277:265:02
7:23
-0:08
25K
15.53 mi12:47:031:55:407:2718:13
7:31
+0:08
30K
18.64 mi13:10:352:19:127:2823:32
7:34
+0:03
20M
20.00 mi13:20:562:29:337:2910:21
7:37
+0:03
21M
21.00 mi13:29:012:37:387:308:05
8:05
+0:28
35K
21.75 mi13:34:312:43:087:305:30
7:21
-0:44
23M
23.00 mi13:44:032:52:407:309:32
7:37
+0:16
24M
24.00 mi13:51:393:00:167:317:36
7:36
-0:01
40K
24.85 mi13:58:103:06:477:316:31
7:37
+0:01
25.2M
25.20 mi14:01:013:09:387:322:51
8:16
+0:39
Finish
26.22 mi14:08:173:16:547:317:16
7:08
-1:08

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

7:08 /mi

Average Pace

7:31 /mi

Slowest Pace

8:16 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:05:58

94% of race

Time at Steady Pace

10:56

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:31 /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 mi11:14:3223:097:2723:09
7:27
#11801
10K
6.21 mi11:37:2346:007:2422:51
7:21
#11264
15K
9.32 mi12:00:261:09:037:2523:03
7:25
#11143
20K
12.43 mi12:23:481:32:257:2623:22
7:31
#11084
Half
13.11 mi12:28:501:37:277:265:02
7:23
#11069
25K
15.53 mi12:47:031:55:407:2718:13
7:31
#10860
30K
18.64 mi13:10:352:19:127:2823:32
7:34
#10290
20M
20.00 mi13:20:562:29:337:2910:21
7:37
#10033
21M
21.00 mi13:29:012:37:387:308:05
8:05
#9844
35K
21.75 mi13:34:312:43:087:305:30
7:21
#9734
23M
23.00 mi13:44:032:52:407:309:32
7:37
#9564
24M
24.00 mi13:51:393:00:167:317:36
7:36
#9465
40K
24.85 mi13:58:103:06:477:316:31
7:37
#9372
25.2M
25.20 mi14:01:013:09:387:322:51
8:16
#9306
Finish
26.22 mi14:08:173:16:547:317:16
7:08
#9177
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi118012682268211054(Top 39%)2399(Top 20%)2399(Top 44%)
10K6.21 mi3.10 mi11264+5372433+2492433+24910796(Top 38%)2204(Top 18%)2204(Top 40%)
15K9.32 mi3.11 mi11143+1212389+442389+4411054(Top 39%)2399(Top 20%)2399(Top 44%)
20K12.43 mi3.11 mi11084+592386+32386+310946(Top 39%)2439(Top 20%)2439(Top 45%)
Half13.11 mi0.68 mi11069+152377+92377+910704(Top 38%)2269(Top 19%)2269(Top 41%)
25K15.53 mi2.42 mi10860+2092311+662311+6610094(Top 36%)2136(Top 17%)2136(Top 39%)
30K18.64 mi3.11 mi10290+5702095+2162095+2168272(Top 29%)1500(Top 12%)1500(Top 27%)
20M20.00 mi1.36 mi10033+2572002+932002+937830(Top 28%)1481(Top 12%)1481(Top 27%)
21M21.00 mi1.00 mi9844+1891953+491953+497879(Top 28%)1676(Top 14%)1676(Top 31%)
35K21.75 mi0.75 mi9734+1101921+321921+327617(Top 27%)1546(Top 13%)1546(Top 28%)
23M23.00 mi1.25 mi9564+1701886+351886+357362(Top 26%)1561(Top 13%)1561(Top 29%)
24M24.00 mi1.00 mi9465+991884+21884+28424(Top 30%)2056(Top 17%)2056(Top 38%)
40K24.85 mi0.85 mi9372+931872+121872+127600(Top 27%)1805(Top 15%)1805(Top 33%)
25.2M25.20 mi0.35 mi9306+661866+61866+67515(Top 26%)1855(Top 15%)1855(Top 34%)
Finish26.22 mi1.02 mi9177+1291846+201846+206615(Top 23%)1501(Top 12%)1501(Top 27%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 39%
×21story building
+97ft-345ft

Overall

11054

Females

2399

F18-39

2399

5K→10K

3.1 - 6.2 mi

Top 38%
×5story building
+79ft-138ft

Overall

10796

Females

2204

F18-39

2204

10K→15K

6.2 - 9.3 mi

Top 39%
×3story building
+67ft-78ft

Overall

11054

Females

2399

F18-39

2399

15K→20K

9.3 - 12.4 mi

Top 39%
×5story building
+106ft-86ft

Overall

10946

Females

2439

F18-39

2439

20K→Half

12.4 - 13.1 mi

Top 38%
×2story building
+19ft-37ft

Overall

10704

Females

2269

F18-39

2269

Half→25K

13.1 - 15.5 mi

Top 36%
×4story building
+66ft-88ft

Overall

10094

Females

2136

F18-39

2136

25K→30K

15.5 - 18.6 mi

Top 29%
×9story building
+181ft-148ft

Overall

8272

Females

1500

F18-39

1500

30K→20M

18.6 - 20.0 mi

Top 28%
×5story building
+64ft-50ft

Overall

7830

Females

1481

F18-39

1481

20M→21M

20.0 - 21.0 mi

Top 28%
×8story building
+106ft-24ft

Overall

7879

Females

1676

F18-39

1676

21M→35K

21.0 - 21.8 mi

Top 27%
×7story building
+17ft-86ft

Overall

7617

Females

1546

F18-39

1546

35K→23M

21.8 - 23.0 mi

Top 26%
×5story building
+23ft-63ft

Overall

7362

Females

1561

F18-39

1561

23M→24M

23.0 - 24.0 mi

Top 30%
×6story building
+12ft-82ft

Overall

8424

Females

2056

F18-39

2056

24M→40K

24.0 - 24.9 mi

Top 27%
×1story
+6ft-20ft

Overall

7600

Females

1805

F18-39

1805

40K→25.2M

24.9 - 25.2 mi

Top 26%
×1story
+13ft-16ft

Overall

7515

Females

1855

F18-39

1855

25.2M→Finish

25.2 - 26.2 mi

Top 23%
×2story building
+22ft-21ft

Overall

6615

Females

1501

F18-39

1501

Passing Analysis

Category:
Athletes Passed
3244*
Passed By
620
Net Change
+2624
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#11801
5K → 10K61174+537#11801#11264
10K → 15K250129+121#11264#11143
15K → 20K203144+59#11143#11084
20K → Half4732+15#11084#11069
Half → 25K27061+209#11069#10860
25K → 30K5788+570#10860#10290
30K → 20M26912+257#10290#10033
20M → 21M219*30+189#10033#9844
21M → 35K1199+110#9844#9734
35K → 23M19929+170#9734#9564
23M → 24M13738+99#9564#9465
24M → 40K11724+93#9465#9372
40K → 25.2M748+66#9372#9306
25.2M → Finish15122+129#9306#9177
TOTALS3244*620+2624

* Includes athletes who did not complete a segment (DNF/DNQ).

📊

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