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BOSTON MARATHON 2025

Kelsey Mcguire

Bib: 12158•F

SC

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 12%
Gender (Female)
#0 / 12228
Top 2%
Division (F18-39)
#0 / 5469
Top 4%
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
6:34/mi
20:24
↑ 97↓ 3451.5%
10K· 6.21 mi
6:31/mi
40:38
↑ 79↓ 1380.4%
15K· 9.32 mi
6:35/mi
1:01:06
↑ 67↓ 78
20K· 12.43 mi
6:42/mi
1:21:55
↑ 106↓ 860.1%
Half· 13.11 mi
6:36/mi
1:26:25
↑ 19↓ 370.5%
25K· 15.53 mi
6:35/mi
1:42:23
↑ 66↓ 880.2%
30K· 18.64 mi
6:47/mi
2:03:27
↑ 181↓ 1480.2%
20M
6:43/mi
2:12:34
↑ 64↓ 500.2%
21M
7:08/mi
2:19:42
↑ 106↓ 241.6%
35K· 21.75 mi
6:37/mi
2:24:39
↑ 17↓ 861.7%
23M
7:01/mi
2:33:26
↑ 23↓ 630.6%
24M
6:49/mi
2:40:15
↓ 821.3%
40K· 24.85 mi
7:01/mi
2:46:15
↓ 200.3%
25.2M
7:29/mi
2:48:50
↑ 13↓ 160.2%
Finish· 26.22 mi
6:47/mi
2:55:45
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:26:25
Pace6:36 /mi
2nd Half
Distance13.11 mi
Time1:29:20
Pace6:49 /mi
📊Positive Split: 3.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:48:3020:246:3420:24
6:34
-
10K
6.21 mi11:08:4440:386:3220:14
6:31
-0:03
15K
9.32 mi11:29:121:01:066:3320:28
6:35
+0:04
20K
12.43 mi11:50:011:21:556:3520:49
6:42
+0:07
Half
13.11 mi11:54:311:26:256:364:30
6:36
-0:06
25K
15.53 mi12:10:291:42:236:3515:58
6:35
-0:01
30K
18.64 mi12:31:332:03:276:3721:04
6:47
+0:12
20M
20.00 mi12:40:402:12:346:389:07
6:43
-0:04
21M
21.00 mi12:47:482:19:426:397:08
7:08
+0:25
35K
21.75 mi12:52:452:24:396:394:57
6:37
-0:31
23M
23.00 mi13:01:322:33:266:408:47
7:01
+0:24
24M
24.00 mi13:08:212:40:156:416:49
6:49
-0:12
40K
24.85 mi13:14:212:46:156:416:00
7:01
+0:12
25.2M
25.20 mi13:16:562:48:506:422:35
7:29
+0:28
Finish
26.22 mi13:23:512:55:456:426:55
6:47
-0:42

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

6:31 /mi

Average Pace

6:42 /mi

Slowest Pace

7:29 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:53:10

99% of race

Time at Steady Pace

2:35

1% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:42 /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 mi10:48:3020:246:3420:24
6:34
#4341
10K
6.21 mi11:08:4440:386:3220:14
6:31
#4062
15K
9.32 mi11:29:121:01:066:3320:28
6:35
#4073
20K
12.43 mi11:50:011:21:556:3520:49
6:42
#4105
Half
13.11 mi11:54:311:26:256:364:30
6:36
#4105
25K
15.53 mi12:10:291:42:236:3515:58
6:35
#3938
30K
18.64 mi12:31:332:03:276:3721:04
6:47
#3776
20M
20.00 mi12:40:402:12:346:389:07
6:43
#3639
21M
21.00 mi12:47:482:19:426:397:08
7:08
#3568
35K
21.75 mi12:52:452:24:396:394:57
6:37
#3520
23M
23.00 mi13:01:322:33:266:408:47
7:01
#3489
24M
24.00 mi13:08:212:40:156:416:49
6:49
#3456
40K
24.85 mi13:14:212:46:156:416:00
7:01
#3445
25.2M
25.20 mi13:16:562:48:506:422:35
7:29
#3416
Finish
26.22 mi13:23:512:55:456:426:55
6:47
#3426
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi43412532534148(Top 15%)238(Top 2%)238(Top 4%)
10K6.21 mi3.10 mi4062+279224+29224+293847(Top 14%)214(Top 2%)214(Top 4%)
15K9.32 mi3.11 mi4073-112242244148(Top 15%)238(Top 2%)238(Top 4%)
20K12.43 mi3.11 mi4105-32236-12236-124452(Top 16%)287(Top 2%)287(Top 5%)
Half13.11 mi0.68 mi41052362364453(Top 16%)272(Top 2%)272(Top 5%)
25K15.53 mi2.42 mi3938+167222+14222+143387(Top 12%)182(Top 1%)182(Top 3%)
30K18.64 mi3.11 mi3776+162209+13209+133337(Top 12%)207(Top 2%)207(Top 4%)
20M20.00 mi1.36 mi3639+137199+10199+102528(Top 9%)142(Top 1%)142(Top 3%)
21M21.00 mi1.00 mi3568+71195+4195+42858(Top 10%)200(Top 2%)200(Top 4%)
35K21.75 mi0.75 mi3520+48193+2193+23089(Top 11%)238(Top 2%)238(Top 4%)
23M23.00 mi1.25 mi3489+31198-5198-53872(Top 14%)377(Top 3%)377(Top 7%)
24M24.00 mi1.00 mi3456+33201-3201-33633(Top 13%)373(Top 3%)373(Top 7%)
40K24.85 mi0.85 mi3445+11206-5206-54049(Top 14%)503(Top 4%)503(Top 9%)
25.2M25.20 mi0.35 mi3416+29204+2204+23438(Top 12%)405(Top 3%)405(Top 7%)
Finish26.22 mi1.02 mi3426-10213-9213-94453(Top 16%)669(Top 5%)669(Top 12%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 15%
×21story building
+97ft-345ft

Overall

4148

Females

238

F18-39

238

5K→10K

3.1 - 6.2 mi

Top 14%
×5story building
+79ft-138ft

Overall

3847

Females

214

F18-39

214

10K→15K

6.2 - 9.3 mi

Top 15%
×3story building
+67ft-78ft

Overall

4148

Females

238

F18-39

238

15K→20K

9.3 - 12.4 mi

Top 16%
×5story building
+106ft-86ft

Overall

4452

Females

287

F18-39

287

20K→Half

12.4 - 13.1 mi

Top 16%
×2story building
+19ft-37ft

Overall

4453

Females

272

F18-39

272

Half→25K

13.1 - 15.5 mi

Top 12%
×4story building
+66ft-88ft

Overall

3387

Females

182

F18-39

182

25K→30K

15.5 - 18.6 mi

Top 12%
×9story building
+181ft-148ft

Overall

3337

Females

207

F18-39

207

30K→20M

18.6 - 20.0 mi

Top 9%
×5story building
+64ft-50ft

Overall

2528

Females

142

F18-39

142

20M→21M

20.0 - 21.0 mi

Top 10%
×8story building
+106ft-24ft

Overall

2858

Females

200

F18-39

200

21M→35K

21.0 - 21.8 mi

Top 11%
×7story building
+17ft-86ft

Overall

3089

Females

238

F18-39

238

35K→23M

21.8 - 23.0 mi

Top 14%
×5story building
+23ft-63ft

Overall

3872

Females

377

F18-39

377

23M→24M

23.0 - 24.0 mi

Top 13%
×6story building
+12ft-82ft

Overall

3633

Females

373

F18-39

373

24M→40K

24.0 - 24.9 mi

Top 14%
×1story
+6ft-20ft

Overall

4049

Females

503

F18-39

503

40K→25.2M

24.9 - 25.2 mi

Top 12%
×1story
+13ft-16ft

Overall

3438

Females

405

F18-39

405

25.2M→Finish

25.2 - 26.2 mi

Top 16%
×2story building
+22ft-21ft

Overall

4453

Females

669

F18-39

669

Passing Analysis

Category:
Athletes Passed
1469
Passed By
554
Net Change
+915
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#4341
5K → 10K33455+279#4341#4062
10K → 15K8293-11#4062#4073
15K → 20K97129-32#4073#4105
20K → Half22220#4105#4105
Half → 25K17710+167#4105#3938
25K → 30K19937+162#3938#3776
30K → 20M1447+137#3776#3639
20M → 21M8413+71#3639#3568
21M → 35K6214+48#3568#3520
35K → 23M7847+31#3520#3489
23M → 24M6835+33#3489#3456
24M → 40K4534+11#3456#3445
40K → 25.2M334+29#3445#3416
25.2M → Finish4454-10#3416#3426
TOTALS1469554+915
📊

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