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BOSTON MARATHON 2025

Sarah Baird

Bib: 19593•F

TN

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 47%
Gender (Female)
#0 / 12228
Top 33%
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
8:09/mi
25:19
↑ 97↓ 3451.5%
10K· 6.21 mi
8:06/mi
50:30
↑ 79↓ 1380.4%
15K· 9.32 mi
8:02/mi
1:15:28
↑ 67↓ 78
20K· 12.43 mi
8:04/mi
1:40:32
↑ 106↓ 860.1%
Half· 13.11 mi
7:56/mi
1:45:57
↑ 19↓ 370.5%
25K· 15.53 mi
8:04/mi
2:05:31
↑ 66↓ 880.2%
30K· 18.64 mi
8:02/mi
2:30:29
↑ 181↓ 1480.2%
20M
8:05/mi
2:41:28
↑ 64↓ 500.2%
21M
8:20/mi
2:49:48
↑ 106↓ 241.6%
35K· 21.75 mi
7:59/mi
2:55:46
↑ 17↓ 861.7%
23M
8:06/mi
3:05:54
↑ 23↓ 630.6%
24M
7:58/mi
3:13:52
↓ 821.3%
40K· 24.85 mi
8:02/mi
3:20:44
↓ 200.3%
25.2M
8:42/mi
3:23:44
↑ 13↓ 160.2%
Finish· 26.22 mi
7:06/mi
3:30:58
↑ 22↓ 21

The Course

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Half Splits

1st Half· via Half⚖️ Balanced
Distance13.11 mi
Time1:45:57
Pace8:05 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time1:45:01
Pace8:01 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:17:3425:198:0925:19
8:09
-
10K
6.21 mi11:42:4550:308:0825:11
8:06
-0:03
15K
9.32 mi12:07:431:15:288:0624:58
8:02
-0:04
20K
12.43 mi12:32:471:40:328:0525:04
8:04
+0:02
Half
13.11 mi12:38:121:45:578:055:25
7:56
-0:08
25K
15.53 mi12:57:462:05:318:0519:34
8:04
+0:08
30K
18.64 mi13:22:442:30:298:0424:58
8:02
-0:02
20M
20.00 mi13:33:432:41:288:0410:59
8:05
+0:03
21M
21.00 mi13:42:032:49:488:058:20
8:20
+0:15
35K
21.75 mi13:48:012:55:468:055:58
7:59
-0:21
23M
23.00 mi13:58:093:05:548:0510:08
8:06
+0:07
24M
24.00 mi14:06:073:13:528:057:58
7:58
-0:08
40K
24.85 mi14:12:593:20:448:056:52
8:02
+0:04
25.2M
25.20 mi14:15:593:23:448:053:00
8:42
+0:40
Finish
26.22 mi14:23:133:30:588:037:14
7:06
-1:36

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

7:06 /mi

Average Pace

8:03 /mi

Slowest Pace

8:42 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

7:14

3% of race

Time at Steady Pace

3:12:24

91% of race

Time at Slower Pace

11:20

5% of race

Average Pace: 8:03 /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 mi11:17:3425:198:0925:19
8:09
#17724
10K
6.21 mi11:42:4550:308:0825:11
8:06
#17458
15K
9.32 mi12:07:431:15:288:0624:58
8:02
#17056
20K
12.43 mi12:32:471:40:328:0525:04
8:04
#16603
Half
13.11 mi12:38:121:45:578:055:25
7:56
#16548
25K
15.53 mi12:57:462:05:318:0519:34
8:04
#16173
30K
18.64 mi13:22:442:30:298:0424:58
8:02
#15296
20M
20.00 mi13:33:432:41:288:0410:59
8:05
#14927
21M
21.00 mi13:42:032:49:488:058:20
8:20
#14563
35K
21.75 mi13:48:012:55:468:055:58
7:59
#14449
23M
23.00 mi13:58:093:05:548:0510:08
8:06
#14195
24M
24.00 mi14:06:073:13:528:057:58
7:58
#14042
40K
24.85 mi14:12:593:20:448:056:52
8:02
#13852
25.2M
25.20 mi14:15:593:23:448:053:00
8:42
#13769
Finish
26.22 mi14:23:133:30:588:037:14
7:06
#13469
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi177246167616716323(Top 57%)5323(Top 44%)5323(Top 97%)
10K6.21 mi3.10 mi17458+2666009+1586009+15817239(Top 61%)5843(Top 48%)5843(Top 107%)
15K9.32 mi3.11 mi17056+4025748+2615748+26116323(Top 57%)5323(Top 44%)5323(Top 97%)
20K12.43 mi3.11 mi16603+4535499+2495499+24915409(Top 54%)4861(Top 40%)4861(Top 89%)
Half13.11 mi0.68 mi16548+555465+345465+3415430(Top 54%)4830(Top 39%)4830(Top 88%)
25K15.53 mi2.42 mi16173+3755258+2075258+20714433(Top 51%)4442(Top 36%)4442(Top 81%)
30K18.64 mi3.11 mi15296+8774818+4404818+44011664(Top 41%)3129(Top 26%)3129(Top 57%)
20M20.00 mi1.36 mi14927+3694653+1654653+16511025(Top 39%)2966(Top 24%)2966(Top 54%)
21M21.00 mi1.00 mi14563+3644477+1764477+1769482(Top 33%)2378(Top 19%)2378(Top 43%)
35K21.75 mi0.75 mi14449+1144420+574420+5712159(Top 43%)3733(Top 31%)3733(Top 68%)
23M23.00 mi1.25 mi14195+2544336+844336+8410741(Top 38%)3113(Top 25%)3113(Top 57%)
24M24.00 mi1.00 mi14042+1534287+494287+4911042(Top 39%)3332(Top 27%)3332(Top 61%)
40K24.85 mi0.85 mi13852+1904213+744213+7410473(Top 37%)3173(Top 26%)3173(Top 58%)
25.2M25.20 mi0.35 mi13769+834177+364177+3610119(Top 36%)3106(Top 25%)3106(Top 57%)
Finish26.22 mi1.02 mi13469+3004017+1604017+1606416(Top 23%)1417(Top 12%)1417(Top 26%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 57%
×21story building
+97ft-345ft

Overall

16323

Females

5323

F18-39

5323

5K→10K

3.1 - 6.2 mi

Top 61%
×5story building
+79ft-138ft

Overall

17239

Females

5843

F18-39

5843

10K→15K

6.2 - 9.3 mi

Top 57%
×3story building
+67ft-78ft

Overall

16323

Females

5323

F18-39

5323

15K→20K

9.3 - 12.4 mi

Top 54%
×5story building
+106ft-86ft

Overall

15409

Females

4861

F18-39

4861

20K→Half

12.4 - 13.1 mi

Top 54%
×2story building
+19ft-37ft

Overall

15430

Females

4830

F18-39

4830

Half→25K

13.1 - 15.5 mi

Top 51%
×4story building
+66ft-88ft

Overall

14433

Females

4442

F18-39

4442

25K→30K

15.5 - 18.6 mi

Top 41%
×9story building
+181ft-148ft

Overall

11664

Females

3129

F18-39

3129

30K→20M

18.6 - 20.0 mi

Top 39%
×5story building
+64ft-50ft

Overall

11025

Females

2966

F18-39

2966

20M→21M

20.0 - 21.0 mi

Top 33%
×8story building
+106ft-24ft

Overall

9482

Females

2378

F18-39

2378

21M→35K

21.0 - 21.8 mi

Top 43%
×7story building
+17ft-86ft

Overall

12159

Females

3733

F18-39

3733

35K→23M

21.8 - 23.0 mi

Top 38%
×5story building
+23ft-63ft

Overall

10741

Females

3113

F18-39

3113

23M→24M

23.0 - 24.0 mi

Top 39%
×6story building
+12ft-82ft

Overall

11042

Females

3332

F18-39

3332

24M→40K

24.0 - 24.9 mi

Top 37%
×1story
+6ft-20ft

Overall

10473

Females

3173

F18-39

3173

40K→25.2M

24.9 - 25.2 mi

Top 36%
×1story
+13ft-16ft

Overall

10119

Females

3106

F18-39

3106

25.2M→Finish

25.2 - 26.2 mi

Top 23%
×2story building
+22ft-21ft

Overall

6416

Females

1417

F18-39

1417

Passing Analysis

Category:
Athletes Passed
4605
Passed By
350
Net Change
+4255
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#17724
5K → 10K439173+266#17724#17458
10K → 15K45452+402#17458#17056
15K → 20K48532+453#17056#16603
20K → Half638+55#16603#16548
Half → 25K39015+375#16548#16173
25K → 30K8792+877#16173#15296
30K → 20M3734+369#15296#14927
20M → 21M3662+364#14927#14563
21M → 35K13218+114#14563#14449
35K → 23M26612+254#14449#14195
23M → 24M16916+153#14195#14042
24M → 40K1988+190#14042#13852
40K → 25.2M885+83#13852#13769
25.2M → Finish3033+300#13769#13469
TOTALS4605350+4255
📊

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